I moved around a lot as a kid.

New school, new town, new set of faces that already knew each other. You learn to read a room fast when you do that enough times. You learn to scan for who is safe and who is not before you ever sit down.

By the time we landed where I went to high school, I was done trying. I did not make many friends. I ate lunch alone more days than I want to admit. And I told myself a story about it that felt like the truth at the time.

I told myself I was fine on my own.

Then I had my first real breakup at 19.

I am not going to walk you through what happened next in detail, and I would ask you not to fill in the blanks with your own version either. What I will tell you is that food became the one thing in my life I felt like I had a grip on. That went on longer than it should have. It ran alongside heavy training, poor sleep, and a level of pressure I thought was normal because I had never known anything else.

Years of that.

And then I got sick.

And although it felt like it was overnight. That is never how it happens. The fatigue came first. Then the gut stuff. Then a diagnosis with a name on it, handed to me by someone who had eleven minutes and a prescription pad.

Here is the part that took me another four years to understand.

My body did not turn on me the day I got that diagnosis. It had been running a threat response for close to a decade. The diagnosis was just the day someone finally wrote it down.

This is part two in my “What I Wish I Knew Before Autoimmune Diagnosis” series, incase you missed part 1 you can read that HERE

In it I cover the importance of light and gut health as aspects of autoimmune terrain and how we can manipulate the environment to create a healing one!

I encourage you to read that article prior to coming to this one.

WHY THIS (The Nervous System) IS THE HARDEST PRINCIPLE TO MASTER

You made it through the light section. You made it through the gut section.

Both of those have something in common. You can kind of buy your way toward them.

Blue blockers. A red light panel. Sunlight. Bitters. A fiber rotation. None of it is easy or exactly straightforward, but a lot of it is external. You can hold it in your hand.

This one is different.

You cannot order a regulated nervous system. There is no magic supplement for it. There is no test that scores it cleanly. And the work itself asks you to sit with the exact sensations you have spent years avoiding.

I have watched people fix their light, fix their gut, dial in every input on the list, and still stall out. Every single time, this is the layer they skipped.

So let me show you why it matters at the level of actual mechanism for autoimmunity and chronic illness in general, and then let me tell you the truth about how we address this.

Before we go further, here is what is coming in this deep dive...

TLDR:

In part two you’ll learn why nervous system state sits upstream of everything you did in part one, and why almost nobody works on it correctly:

Your immune system has a hard wired off switch, and it runs through a nerve.

Autonomic dysfunction shows up before autoimmune disease does. A prospective study caught it in people who had not developed arthritis yet.

People with a diagnosed stress disorder had measurably higher rates of autoimmune disease than their own siblings.

Why “my cortisol came back normal” tells you almost nothing. The problem is usually not how much cortisol you make. It’s whether your cells still listen to it.

State comes before story. Your nervous system decides what your body feels like, and then your mind writes an explanation for it. Get this backwards and you’ll spend years arguing with a narrative that was never the cause.

The polyvagal problem. In February 2026 a group of 39 scientists published a formal challenge to the theory half this industry is built on. I’m going to tell you exactly what they said, what survived it, and what I got wrong in an article I wrote.

Where Bruce Lipton and Joe Dispenza are useful, and where the evidence stops. I’m not going to pretend either of them is settled science. I’m also not going to throw out the parts that hold up.

What actually moves inflammatory gene expression. Eighteen studies, eleven years, one consistent signature. Plus the four steps in order.

I spent a decade telling myself I was fine on my own. My nervous system had a different opinion, and it was keeping score.

If you’d like access to this full article and all of my other past and upcoming deep dives, considering supporting my research for $9.99/month or $80/year (about $6.67/month), your support makes it possible for me to nerd out on all of these crazy topics for everyone!

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If you’re reading this newsletter chances are you maybe in the same boat I was 7 years ago (man time flies), when after being diagnosed with an autoimmune disease I felt alone with no direction. That being said, my understanding of the Autoimmune process has greatly evolved since that time..

BUT WHAT IS AN AUTOIMMUNE DISEASE?

Below is the definition you’ve probably heard from your physician:

Medical Definition: “An autoimmune disease is a condition in which the body’s immune system mistakenly identifies and attacks its own cells, tissues, or organs as if they were foreign invaders. This immune response leads to inflammation, tissue damage, and a range of symptoms that can vary depending on the specific autoimmune disorder.”

This definition, unfortunately implies that this attack is “out of our control.”. I’ve found this to be untrue. When we look at the body as one unit as opposed to separate systems we begin to understand the root cause of these phenomena. There is one thing ALL autoimmune illnesses have in common:

Mitochondrial Dysfunction: Which refers to abnormalities or impaired functioning of the mitochondria (cellular organelles responsible for producing energy in the form of adenosine triphosphate (ATP).) Mitochondria are often referred to as the “powerhouses” of the cell due to their crucial role in energy production and various cellular processes. Mitochondrial dysfunction can result from epigenetic mutations, environmental factors, or in most cases a combination of the two

Mitochondrial Dysfunction in the Context of Autoimmune Disease: While conventional doctors primarily focuses on the involvement of the immune system attacking the body’s own tissues, there is a growing body of research suggesting a link between mitochondrial dysfunction and autoimmune disorders. (Studies: PMCID: PMC9220001 ,PMID: 35978536.)

A QUANTUM APPROACH TO AUTOIMMUNE HEALTH

The steps I used to reverse my own autoimmune process was neither unique nor irrepetible, in fact the principles I discuss today have helped over 150 of my own autoimmune clients put their symptoms into remission.

Instead of going into all the nuances in one newsletter today I want to cover two of the MOST important modalities - Light and it’s impact across the board, and the gut, where the “root of all disease happens” (or so they say).

MITOCHONDRIAL PRINCIPLE 1: Circadian Biology is THE MOST important aspect of health. You’ve probably heard me write about this before (maybe even a ton), but this aspect really cannot be overstated enough. As circadian health impacts every aspect of our physiology and especially the immune system.

Why?

Because it encompasses:

• sleep

• diet

• light environment

• connection w/nature

Anyone not teaching this is missing a HUGE chunk of the health pie.

If we are viewing “autoimmune disease” in the guise of mitochondrial dysfunction we need to optimize how energy is being produced.

Many “gurus” in the space will point to diet modification for optimizing this energy production, but what if I told you only 1/3 of your energy came from food, this would mean we’re missing 2/3 of the equation. So whats the other 2/3?

IN SHORT: More sun = more water production by the mitochondrial matrix = better energy production = LESS chance of neolithic disease.

LIGHTS EFFECT > FOOD : after all all food is a downstream result of sunlight.

We know Vitamin D tends to lower your risk of autoimmune symptoms (more autoimmunity is found the further north in latitude you move where the light is more chaotic through out the year). HOWEVER, in studies supplemental vitamin D showed bismal results in terms of controlling autoimmune symptoms. Though it did show benefit when you get Vitamin D from the sun…

“Beyond these mechanistic observations, association studies have reported the correlation between low serum 25D levels and the risk and severity of human immune disorders including autoimmune diseases such as inflammatory bowel disease, multiple sclerosis, type 1 diabetes and rheumatoid arthritis.” PMID: 35196255

Now that we have this out of the way, how can YOU optimize your sunlight in order to max mitochondrial energy production. We simply cant throw you out into the noon day sun for hours on end, you’ll burn.

But before we get to that, let’s go over what else we’ll be learning in this Autoimmune Deep Dive…

TLDR:

In this article you’ll also learn why light and gut terrain are the two biggest levers in an autoimmune process, and why almost everyone works on them in the wrong order:

• Only about 1/3 of your energy comes from food. Supplemental vitamin D keeps failing in studies while sunlight keeps working, and there’s a mechanistic reason for that gap.

• Your Guide To Safe Sunbathing and Building Your “solar callus”. Six principles for building one without burning, written by someone who actually lives it.

• Your gut bacteria run on your clock. Roughly 60 percent of the bacterial community rises and falls across 24 hours. They never see a photon of sunlight. They still know what time it is, and you’re the one telling them.

• Understanding the terrain of the gut to know whats actuallly wrong with yours: stomach acid, bile, motility, the mucus layer, secretory IgA, and the oxygen gradient. BUT HOW can you measure these?

• What are Biofilms? And why do they keep things like bacteria, viruses and candida/SIBO from going away. The supplements sold to dissolve them have almost no human evidence behind them, and I’ll show you exactly where that evidence stops and what to start.

• Most gut panels measure less than you were told. I’ll share with you my favorite tests for assessing your gut health and what they can show you and how to use them.

• How to actually fix your gut terrain. Four steps, in sequence. Run them backwards and you’ll feel terrible, call it die off, and escalate. Most people run them backwards.

I spent years treating the tenants. Now you can too! Past this point is for my premium members only. For $9.99/month or $80/year (about $6.67/month), you can access all of my upcoming and past deep dives, protocols and other autoimmune resources. In addition you’ll soon have access to a private chat with me and others to help you troubleshoot your personal questions with what you’re learning here.

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If you’ve been a reader of my substack for any length of time you’ll probably know that the human body operates on a complex internal clock known as the circadian rhythm, which governs various physiological processes, including sleep-wake cycles, hormone release, and immune function.

If this is a newer concept to you, welcome! In this article I want to help you understand specifically how light/darkness and our relationship to those cycles both daily and seasonally impact our biology from an autoimmunity point of view.

Misunderstandings about sunlight exposure and circadian rhythms have led to widespread misinformation, potentially exacerbating health issues. There is substantial growing evidence that all autoimmune conditions are associated with a disruption of circadian rhythms. Today I want to explore the existing scientific evidence linking circadian disruption to autoimmune conditions and offer practical tips for maintaining a healthy circadian rhythm regardless of location.

Understanding Circadian Rhythms and Autoimmune Conditions

Circadian rhythms are roughly 24-hour cycles in the physiological processes of living beings, driven by an internal time-keeping system. Disruptions to these rhythms can occur due to various factors, including irregular light exposure, shift work, and poor sleep hygiene. This has become even more apparent in the last 100 years with the advent of modern lighting, screen technology and our economic shits to service work and indoor lifestyles.

Emerging research suggests that such disruptions can have profound impacts on health, particularly in relation to autoimmune conditions like my own.

A CASE STUDY: The Role of Circadian Disruption in Autoimmune Thyroiditis

As someone who also had autoimmune thyroid, I found this study fascinating.

So for this example, let’s examine autoimmune thyroiditis (AIT), also known as Hashimoto’s thyroiditis, is a condition where the immune system attacks the thyroid gland. A study by Fu et al. (2023) demonstrated that circadian clock disruption plays a significant role in the pathogenesis of AIT. Chronic circadian disruption was found to worsen inflammatory responses in AIT patients, highlighting the importance of maintaining regular circadian rhythms for immune health (Fu et al., 2023).

When it comes to our immune system itself A disrupted circadian rhythm kickstarts a cascade of effects that can lead to a hyper reactive immune response, which is exactly what happens with autoimmunity.

In my opinion, all autoimmune conditions must have strong circadian signaling in order for the body to heal.

In this article i’ll be covering all the nuances in the circadian system that allows for disease proliferation and or recession based on conditions.

I’ll also provide you with practical tools, tips and tricks to troubleshoot day to day inconveniences when it comes to light exposure and darkness as well as major discounts on some of my favorite lighting options and blue blockers (exclusive to premium substack members only)

This guide like all of my articles is for my premium members, if you’d like to upgrade you can for $9.99/month or save for $80/year (which works out to about $6.67/month) to get access to every weekly piece of in-depth content

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For many with nerve pain, this can increase (sometimes dramatically at night.

There were weeks where I slept less than two hours a night.

Not two hours in bed. Two hours of actual sleep, scraped out of eight hours of lying still in the dark, waiting.

For some clients that i’ve worked with who suffer similarly to me with this neuropathic pain, 2 hours may have seemed like a dream scenario for them!

The tingling would start first. Then the burning, which moved through my arms like someone had run a wire under the skin. Then the twitching, small at first, individual muscles firing (usually in my calf) on their own schedule.

And then, right at the edge, right at the moment my body finally started to let go, my arms would shake. Violently. Uncontrollably. It would throw me back into full consciousness with my heart hammering and my whole body flooded with a fear I did not have words for.

That happened at the exact instant I began to fall asleep. Every time, without fail.

So bedtime stopped being rest. Stopped being safety. Bedtime became the appointment I dreaded all day.

By the afternoon I could already feel the dread building, and by nine at night my body was braced for it like a man waiting for a punch.

My mother would sleep by me on the floor for months to help me cope with the trauma of these events.

Quite literally, I was a grown man who needed his mom in the room to get through the night, and I want you to sit with that for a second, because I am not telling you that for sympathy. I am telling you because it is the clearest measurement I have of how much fear my nervous system was carrying.

FEAR WILL CRIPPLE YOU WORSE THAN YOUR CONDITION

Around two in the morning I would give up on the idea of sleeping and turn on Comedy Central.

That felt like the smart move. I was not going to sleep anyway, so I figured I would distract myself out of the fear instead of lying there marinating in it. Stand up specials, reruns, whatever was on. Screen six inches from my face in a pitch black room at three in the morning.

I now know that choice was one of the worst things I did to myself during that entire period, and I will show you exactly why later in this article.

By 6am I felt like trash. Not tired. TRASHED. Hollowed out, raw, everything turned up too loud.

But this is the reframe that I mistook for a year

I believed my symptoms were destroying my sleep. That was the narrative I was looping in my mind, night after night. The disease was the cause, the sleeplessness was the effect, and once someone fixed the disease the sleep would come back.

But the truth is, I was following the wrong guiding star.

Everything changed when I read a book with a title so blunt I bought for fathers day as a joke.

Calm the F*ck Down by Sarah Knight. I expected nothing from it. I simply wanted an escape from the loop I had been living in: Fear, Research, Fear, Desperation, Fear, Crash…

But what I actually got was a single idea that rearranged how I understood my own behavior: worry is not preparation. Knight sorts every problem into what you can control and what you cannot, and gives the useful version a name, PHEW, which stands for Productive Helpful Effective Worrying. Everything outside that category is a tax you volunteer to pay.

Once I had that frame, I could finally see what I had actually been doing for eighteen months. What I called research was flooding. What I called vetting a practitioner was handing someone money in exchange for twenty minutes of feeling like the problem had an owner. And the protocol I thought I was building had been assembled off the internet from strangers whose situation shared nothing with mine except a symptom word.

And underneath all of it sat one thing that no supplement, no specialist, and no lab panel was ever going to resolve. I did not know what was going to happen to me.

That not knowing was not a psychological inconvenience sitting on top of my real disease. It was an input. Your nervous system does not run on facts, it runs on prediction. When it cannot predict, it stays armed. An armed nervous system sleeps badly, feels more pain, misjudges risk, and spends money. Researchers have quantified nearly every step of that chain, and the numbers are larger than you would guess.

If you suffer from uncertainty (like I did), this article is for you. Because the only sure thing I know to be true, is that there will always be uncertainty in life, but its our relationship with that feeling that creates the reality!

TLDR

• Uncertainty produces a bigger stress response than bad news does. A 50% chance of a shock stresses the body more than a guaranteed one.

• Worry is not a thought, it is a physiological state that keeps your stress response running for hours after the trigger is gone, including while you sleep.

• One night without sleep raises amygdala reactivity 60% and weakens the prefrontal brake that shuts it off.

• The same sleep loss raises pain signaling 126% in the sensory cortex while blunting your built in pain relief circuits.

• Catastrophizing degrades decision quality, which is why desperate patients buy the most and vet the least.

• Roughly one in five people leaving an ICU carry PTSD symptoms a year later. Medical settings produce real trauma, and nobody screens for it.

• You are the only person with write access to this loop.

BIG ANNOUNCEMENT: All upcoming deep dives like this one are for paid premium members. Upgrading unlocks my full nervous system regulation protocols, lab work guides, and condition specific breakdowns for $9.99/month or $80/year. Upgrade here

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The first time a client asked me about “hydrogen water,” i told her to save her money.

She already had spent $300 on a machine that bubbled gas into an open glass. Three months of drinking it every morning, and she felt exactly the same. My assumption back then was that the whole category was expensive water wrapped in good marketing. (Like most biohacks)

That being said the molecule is real. Her machine was the problem, and almost nobody selling these devices will tell you that.

Since 2007, more than 2 thousand papers have been published on hydrogen gas as a potential therapy, and 81 clinical trials have been registered in humans. That is a serious body of work that shouldn’t just be ignored, for something that most doctors have never even heard of. It is also a body of work that gets described incorrectly almost every single time someone tries to sell you one of these devices.

The story you get on the sales page goes something like this: “Hydrogen is a selective antioxidant. It hunts down the bad free radicals and leaves the good ones alone.” Clean, simple, elegant and repeated so many times that it has become the accepted version of events to many.

That story I just told you has a hole in it big enough to drive a truck through, and the people who found the hole are the same researchers who study hyrdogen for a living.

In this article I want to introduce you to the REALITY of hydrogen therapy, stay tuned for an even deeper dive going over as much of the available research as humanly possible. Consider this the spark notes to the upcoming definitive guide to Hydrogen Therapy.

TLDR:

• Free radicals come in two basic flavors: Some damage your tissue. Others carry important instructions your body depends on, which is why blanket antioxidant dosing can backfire

• Hydrogen is the smallest molecule in existence. It crosses the membranes without a transporter and reaches the inside of your mitochondria.

• I’ll go over the 2007 paper that launched the field proposed that hydrogen directly neutralizes the most destructive free radicals. The claim does not survive the math

• The stronger explanation, and I am labeling this as a working hypothesis rather than a settled argument, is that hydrogen acts as a signal that switches on your own antioxidant machinery through NrF2 pathways and quiets inflammaiton through NF-kB

• The best human trial on file is a 24 week one in which 60 people with metabolic syndrome saw improved cholesterol, glucose, HbA1c, and inflammatory markers

• The largest Parkinson’s trial failed completely

• Hydrogen escapes water within minutes. Most delivery methods you can buy deliver almost nothing

To get access to this full article in it’s entirity and all my other deep dives, consider upgrading to a premium subscription for $9.99/mont or $80/year (which works out to about $6.67/month)

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Most people know they need vitamins and minerals, but they don’t realize that supplementing and eating real food are not always two in the same.

For example, I used to spend $60.00/month on vitamin C. I tried every form.

Liposomal. Buffered. Ascorbyl palmitate for the fat side. I was taking eight grams a day at the peak of it, split into four doses, chasing an inflammation number that would not come down. My reasoning was really quite simple and completely wrong: vitamin C is an antioxidant, I have oxidative stress, therefore more vitamin C equals less oxidative stress.

Six weeks later my labs looked identical. Has this ever happened to you?

My hands still went numb at night. My energy still fell off a cliff at two in the afternoon.

What I did not understand back then is that vitamin C does not sit at the end of a line and mop up damage. Vitamin C sits in the middle of a relay race.

It takes damage from one molecule and hands it to the next. If the next molecule in that chain is missing, or the enzyme that recharges it is missing its mineral, or the fuel that powers the whole recharge system has run dry, then all that vitamin C does is stack up in a queue with nowhere to go.

I was flooding one node of a network and calling it a protocol.

This article is the map I wish someone had handed me in year one. It shows you how the antioxidant systems actually connect to each other, which cofactors sit under each connection, and why the answer to “what diet should I be on” almost never comes down to carnivore versus vegan versus keto.

The answer often comes down to whether your food covers the whole web or leaves three nodes dark. And what aspects of your physiology are lacking.

TLDR

• Antioxidants work as a chain, not as individual soldiers on the ground. Vitamin E for example hands damage to Vitamin C, Vitamin C then hands it to glutathione, glutithione hands it to NADPH. That cascade is important to understand

• Every recharge step needs its own cofactor. Riboflavin (B2) for example, powers glutathione reductase. Selenium powers glutathione peroxidase. Zinc, copper and manganese power superoxide dismutase and Iron powers catalase. Most physicians in a functional space jump to glutathione or superoxide dismutase without assessing the cofactors.

• NADPH, the electron currency behind some of the system, comes from the prentose phosphate pathway. That pathway needs G6PD, thiamine (B1), and a steady glucose flux to work.

• Glutathione needs three amino acids to be built: cysteine, glycine and glutamate. Glycine runs lower as we age and deal with chronic stress. Collagen and broth may fix these issues cheaply

• Alpha lipoic acid (ALA) is honestly the most underrated molecule in the entire system because it recharges vitamin C, E, glutathione, and even CoQ10, and it works in both water soluble and fat soluble environments.

• NRF2 turns on every arm of the defense system at once, which is why food based activators outperform single high dose pills.

• Three large trials showed that megadosing isolated antioxidants raised cancer risk. Balance beats brute force.

• The truth is, the best diet is the one with the highest nutrient density per calorie that you can actually digest, test, then correct the specific gaps. THIS IS THE WAY

Quick note from the author: Everything below the line is for premium subscribers. Paid members get the full mechanistic breakdowns of these nutrients, the food sourcing tables I’ve created, the lab panel I run on every client, and the troubleshooting section for when you don’t know what to do but throw up your hands.

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My client (who we’ll call Rose) had been taking iron for 19 months.

She had spent hundreds of dollars on iron bisglycinate, desiccated spleen, taken the co-factors for absorption (like vitamin C), dosed exactly what the doctor told her. Her ferritin (storage form of iron) had climed from 22 to 68. On paper, the problem was being solved. Her doctor told her the numbers looked great and suggested she consider therapy for her fatigue.

Yet, she still struggled to climb a flight of stairs wihtout her heart punding like a drum out of her chest. Her hair was still running thin and falling out in the shower, her hands were still cold (even though it was mid summer), and when she finally brought me the full iron panel instead of the one number her doctor circled, the story fell apart before our eyes. Her serum iron was 41, her transferrin saturation was 11%, her TIBC (Total Iron Binding Capacity), the marker almost nobody looks at correctly, was sitting at 248 when it should have been climbing.

That panel was not describing a woman who needed MORE iron. It was describing a woman whose body had made a decision to HIDE the iron she already had, and had been making that decision every single day for that year and a half.

In a previous article I explored how bacteria may cause a reaction in the body to hide iron and how certain supplements like lactoferrin may play a role in correcting this process. However; I didn’t explore how to assess whether or not you maybe truly anemic vs experiencing anemia of inflammation.

In this article I hope to correct that so you can analyze your labs in a way that gives you more calrity on the subject.

TLDR: Here’s what I’ll be covering (and why its important)

• Low iron on a blood panel can come from two completely different physiological situations, and they require different action steps to correct.

• Iron deficiency means your warehouse is empty. Your body is in need of iron and either enough isn’t coming in or usage outweighs what is being put back into stock.

• Anemia of inflammation means the warehouse is full and locked; however, body has iron and is deliberately refusing to release it, because inflammation triggers an ancient defense system that starves invaders of iron. This can be for emany reasons, which i’ll be exploring with you

• The hormone that makes this decision is hepcidin. It is produced by your liver, driven up by the inflammatory signal IL-6, and it destroys the only door iron has to exit your cells.

• TIBC and transferrin are the cleanest tell. They rise in true deficiency and stay flat or fall in inflammation.

• Ferritin lies during inflammation. It is an acute phase protein and rises with immune activation, which means a “normal” ferritin does not rule out deficiency in an inflamed body.

• Soluble transferrin receptor (sTfR) and reticulocyte hemoglobin (Ret-He) cut through the inflammation and report what the bone marrow is actually receiving.

• The two conditions coexist constantly. Reading them as either/or is the mistake that costs people years.

• Pushing iron into a hepcidin-blocked system wastes the iron, feeds pathogens, and irritates the gut. We’ll discuss how lowering inflammatory drivers can free up the warehouse.

Everything below this point is for my paid subscribers, if you’d like to get access to all of my weekly protocols and deep dives, consider upgrading for $9.99/mont or $80/year (which works out to about $6.67/month).

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6 years ago I sat in a nerologists office with a fresh diagnosis and a printout that told me nothing about why I was sick.

My first symptom was 6 months prior to this doctors visit, where siting in my groundfloor appartnemt my left palm began to tingle. Within weeks it had spread to both hands, then my face, my neck, my legs, my feet. A skin biopsy gave it a name. Small Fiber Neuropathy, driven by an autoimmune process. The plan I was handed came down to a lifetime of pain management and drugs that quiet the immune system without ever asking why it turned on me in the first place.

I walked out of that office knowing two things.:

1) My label was real, I wasn’t crazy.

2) The label was useless to me as a map for getting better.

So I fired my doctors and went looking for the map myself. I went back to school, became a Nutritional Therapy Practitioner, and put my own symptoms into remission. Since then I have worked with hundreds of autoimmune and neuropathic clients and watched the same patterns repeat until they stopped looking like coincidence and started looking like rules.

What follows are the positions I have landed on after five years of my own recovery and thousands of hours inside the blood work, sleep patterns, and daily habits of the people I coach. These are the hills I will die on. Some of them will, without a shadow of a doubt, annoy your doctor. A few of them annoyed me when I first ran into the evidence honestly.

All of them changed the way I heal, and the way I help other people heal.

Read them in order. Each one builds on the last.

TLDR

• Two people with the same autoimmune diagnosis can carry opposite root causes. Your blood chemistry, not a template, decides what your diet should look like.

• A diagnosis names the tissue under attack. It never explains why your immune system went there.

• Supplements are one input. Sleep, light, meals, and stress run every single day, and they outvote a capsule almost every time.

• Your nervous system decides whether your body is in repair mode or defense mode. You cannot biohack your way out of feeling unsafe.

• Remission is a practice you keep, not a finish line you cross. Here’s how I’d build a framework for healing.

Want the full framework I use with clients, plus every deep-dive I publish? Upgrade to my premium substack which $9.99/month or $80/year ($6.67/month) and get the complete “Autoimmune library” i’ll be building on this page covering everything from nutritional elements to consider when troubleshooting symptomology and labs, to nervous system and fascia work your immune system will love.

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The Lie We All Thought

Everyone of us probably learned this in the 4th grade.

The heart is a pump. It beats about 100,000 times a day and pushes blood through all of your arteries and veins, delivering oxygen and nutrients to every corner of your body.

Sounds simple right? One organ, job.

However, what if that’s not the full story?

What if the story we were told about our own heart, the organ that has been beating inside our chests since before you were born, is missing something so important that it has quietly shaped the entire way we think about conditions like heart disease, and why, despite decades of “advances” in cardiology, heart disease still kills more people than anything else on the planet?

That question is where this story starts.

Coronary Artery Disease is the number one killer in the world. Not cancer (not yet). Not infections. The disease of the heart. And yet, despite better techniques, surgeries, a billion more medications, and hundreds of billions of research dollars spent, more than any other area of medicine, the rates keep climbing.

To top it all off, 50-75% of all heart attacks happen in people with NORMAL amounts of “so called bad” cholesterol (LDL).

Something must be missing.
Something foundational.

Recently I spoke with Dr. Stephen Hussey, a functional medicine practitioner and author of Understanding the Heart, knows this personally. At 34 years old, living what he thought was a healthy lifestyle, all of his blood markers were completely normal when he suddenly had a MASSIVE heart attack, a STEMI, the kind doctors call the “widowmaker.”

Statistically, only 12 percent of people who have one outside of a hospital survive. He was one of them. And after this event Stephen faced, potentially, the most uncertainty filled decision of his life: follow the standard cardiologist’s playbook (that already wasn’t working or preventing cardiac events), or start from scratch and begin applying everything he’d spent years learning about how the heart actually works.

He chose the latter.

What he learned, and what you’re about to read, doesn’t just challenge the pump model of the heart. It may just turn the entire story of cardiovascular health inside out.

You can watch our full interview with Dr. Stephen Hussey:

Here on YouTube

Or by listening on Spotify:

For those of you who want to keep reading, in the reaminder of the article I’ll be exploring several nuances of the heart, its capacity to createa and respond to magnetic fields, the mitochodrial density in the heart and why this is critically important to understanding what the heart is doing and more.

But this is for my premium substack members only, if you’d like to get a sneak peak at what’s next Here is what is behind the paywall:

• Why and how blood carries its own momentum, and what your heart is actually doing when it contracts (not just pumping blood)

• The fourth (structured) phase of water, and the University of Washington lab that produced days of continuous flow through a tube using nothing but light. (spooky)

• Why your aorta bends inward under pressure instead of outward the way a real pump would force it, and what that single detail tells you about suction versus pushing

• The mitochondrial loop connecting sunlight, your own body heat, and blood flow, and why your heart is the most mitochondria-dense organ you own

• What Gilbert Ling worked out about the water inside your cells, and why losing that charge is what exhaustion actually feels like

• Why the heart has 40,000 neurons and generates a magnetic field you can measure feet away from your chest

• The full seven-part protocol with starting doses, titration timelines, and separate notes for MCAS, autoimmunity, and POTS on every single step

• The three-item version for anyone whose system is too reactive to handle more than three things

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Before we begin let’s rephrase the question at hand. What if heart disease is an energy problem instead of a plumbing problem? Does this make every treatment decision you have ever been handed looks different? Let’s dive in…

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Not just sugar. Not just a optimal environment. Iron.

That potential situation sits underneath almost every infection you have ever had, and almost nobody talks about it. While many people vaguely like to talk about immune boosting. We talk about vitamin C and zinc and elderberry. Meanwhile the actual war happening inside you is a fight over a metal.

Iron is not optional for you either. And it’s one thing that on a clients lab panel almost always comes in out of whack, despite their physician saying “its normal!” It carries oxygen through your blood. It builds the red cells that keep your brain fed. It sits at the center of your mitochondria, powering the electron transport chain that makes the energy running your heartbeat right now. Strip iron out of a human and you get a corpse in about four minutes.

So you need it. Badly.

And so does every single organism that wants to use your body as a food source.

That is the trap your physician or functional practitioner almost always misses. The one nutrient you cannot live without is the same nutrient your invaders are hunting for. You are walking around carrying roughly four grams of the most fought over resource in biology, and your body has to keep it away from things that would use it against you while still delivering it everywhere it belongs.

Think of iron like gasoline. Your physiology requires it. Yet, so do the enemy tanks. Leaving fuel cans sitting out in the open does not make you stronger. It arms whoever shows up.

We can’t let the opportunistic organisms win.

And your body has known this. Long before antibiotics, long before hand soap, long before anyone understood what a bacterium was, evolution built a system for controlling who gets the iron. That system has two parts. One works deep inside your bloodstream. The other one guards the doors.

The guard at the door is a protein called lactoferrin. It is one of the most underrated molecules in human health, and the richest source of it you can actually buy sits in a food most adults abandoned before they could form a memory.

If you read my breakdown on how iron drives inflammation, this is the sequel. That article showed you the problem. This one hands you the tool.

Your Body Burns the Crops

When an infection starts, something strange can show up in your bloodwork.

Iron dropping.

But doctors don’t see it usually, because when you live in a world where reference ranges are built on a sick population, you lose what optimal is. A patient comes in fighting something, and their serum iron reads low ( below 130mcg/dL, but maybe not to the physician). If they do catch it, the reflex is to call it a deficiency and reach for a supplement. In this case the reflex is backwards, and understanding why changes how you think about your whole immune system.

Your body might have pulled that iron on purpose.

In the literature we call this nutritional immunity, and it is one of our bodies oldest defense strategies. The moment your immune system detects an invader, it starts hiding the iron. It yanks it out of circulation and locks it away inside your cells where bacteria cannot reach it. The invader shows up expecting a full tank and finds the pumps shut off.

The hormone responsible for this operation is hepcidin.

Hepcidin works like a master dimmer switch for iron. When inflammation rises, your liver pumps out hepcidin, and hepcidin shuts down the gates that release iron into your blood. Iron stops getting absorbed from your gut. Iron already stored in your cells stays put. Within hours your bloodstream becomes a much harder place to be a bacterium.

This system is so effective that some pathogens evolved counter weapons just to overcome it. Certain bacteria manufacture molecules called siderophores, which are essentially iron thieves. They grab iron with a stronger grip than your own proteins and rip it away. That arms race has been running for hundreds of millions of years, which tells you how much is at stake.

Your body then evolved a counter to the counter. You produce proteins that hunt down bacterial siderophores and neutralize them before they can deliver their stolen cargo. Weapons built to defeat weapons built to defeat your first weapon, layered on top of each other over evolutionary time.

Nothing in your body gets that complicated unless the stakes are enormous.

This is also why the reflex to supplement iron during an active infection deserves a much harder look than it usually gets. You are not correcting a deficiency in that moment. You are potentially unlocking the vault your body deliberately sealed. I am not telling you to avoid iron, and anyone with genuine iron deficiency anemia needs real treatment under real supervision. What I am telling you is that a low iron reading taken while your body is fighting something is not the same measurement as a low iron reading taken when you are well, and treating those two numbers identically is how well meaning care goes sideways.

Here is where I personally think it gets fun…

Hepcidin controls the iron in your blood and your organs, deep behind the walls. But most invaders never make it that far, because most invaders are trying to break in through the front door. Your gut lining. Your mouth. Your eyes. Your airways. The wet surfaces where the outside world touches the inside of you.

Hepcidin has almost no reach out there.

The front door needs its own guard (don’t want thieves to steal things).

Meet the Guard At The Front Door

The protein standing at that front door is lactoferrin (mentioned previously)

And it may surprise you to know you have it in your tears. You have it in your saliva. It coats your gut lining, sits in your airways, and rides inside your white blood cells waiting to be dumped onto a problem. Anywhere your body touches the outside world, lactoferrin is already there.

Its job is actually quite ismple. Lactoferrin hunts down loose iron and clamps onto it before a microbe can.

Lactoferrin folds into two lobes, and each lobe closes around an iron atom like a hand closing around a marble. Once it grabs, it does not let go easily. It holds iron with a grip roughly three hundred times tighter than the protein that normally ferries iron through your blood. Even in the acidic, hostile environment of an inflamed tissue, lactoferrin keeps its fist closed.

So the bacteria arrive at the border, and the fuel is already gone. Somebody got there first, good for you.

This is why lactoferrin shows up in tears. Your eyes are wet, exposed, and touched by dirty hands all day long. They should be infected constantly. They are not, because every blink washes them in a protein that strips the iron out of the environment before anything can use it.

“Okay cool Ryan, but how does this apply to me?” Well i’m so glad you asked…

Lactoferrin is most concentrated in colostrum, the thick first milk a mother produces in the days right after birth. Human colostrum carries several times more lactoferrin than the mature milk that follows. Cow colostrum is the most concentrated source you can actually put in a jar and buy.

And cow lactoferrin works in your body. It shares roughly seventy eight percent of its structure with the human version, close enough that your tissues recognize it and use it. The FDA classifies bovine lactoferrin as generally recognized as safe (for what it’s worth).

If you think about it, its sort of amazing.

Your very first meal, before food, before water, before you opened your eyes, was a concentrated dose of the protein that guards your borders. Evolution front loaded it. A newborn arrives with a gut that leaks like cheesecloth and an immune system that has never met a single pathogen, and the first thing it receives is a shot of border security.

Then you grew up never knowing what it was, how it supported your development and we stopped drinking it.

Every other mammal does the same, of course. What no other mammal does is spend forty years eating processed food 70% of the time, living and sleeping under artificial light, taking painkillers and anti-anxiety meds to get by, and grinding its gut lining down while wondering why suddenly you feel like crap and have no energy all the time…

What Colostrum I Use

I’ve personally been using colostrum for exactly this reason this past year.

It is the most concentrated lactoferrin source available without a prescription, and it arrives packaged with the immune factors that evolution designed to travel alongside it.

One brand I’ve used consistently for the last year or so and am happy to be partnered with is Naked Nutrition, specifically their Naked Colostrum.

Naked Nutrition’s Colostrum is grass fed, sourced from US dairy farms, and it is a single ingredient with nothing else added. No fillers, no gums, no flavoring, no proprietary blend hiding the ratios. Naked Nutrition ensures it is third party tested for immunoglobulin content, and it is dried at low heat. Thank goodness.

That last part may sound unimportant, but it’s critical to not skip in understanding, so I am going to spend the next part of this article proving it to you, because the drying step is where most colostrum on the market quietly dies without anyone noticing.

Try Naked Colostrum here

Now let’s dive into the second half of what lactoferrin does…

Rust Is Just Slow Fire

Loose iron does not only feed your bad bacteria/fungus.

It also burns you from the inside out.

To understand this you need one chemical reaction, and it is worth learning because it explains an enormous amount about aging, autoimmunity, and chronic disease. It is called the Fenton reaction.

Your cells constantly produce hydrogen peroxide. That is normal. It is a byproduct of running your mitochondria, and in small controlled amounts your body uses it for signaling. On its own it is manageable.

Drop free iron into that peroxide and the chemistry changes instantly.

Iron takes the relatively tame peroxide and converts it into a hydroxyl radical, which is one of the most destructive molecules in all of biology. It has no specificity and no restraint. It attacks whatever it touches first. Cell membranes. Proteins. DNA. The delicate machinery inside your mitochondria.

A hydroxyl radical lasts about a billionth of a second. In that time it will wreck whatever molecule it happens to be standing next to.

You already know what this reaction looks like on a larger scale, because you have seen iron meet oxygen and moisture out in the world. You have watched a nail go orange and flake apart. You have seen a car panel bubble up from the inside.

Rust is slow fire. Your tissues are running a version of it whenever iron gets loose.

This is the mechanism behind so much of what I write about. It is a major reason chronic inflammation damages tissue over time. It is central to the type of cell death called ferroptosis, which is literally named after iron. When I talk about protecting your mitochondria, a large part of that conversation is about keeping iron out of places it does not belong.

Lactoferrin sits directly on top of this problem.

By clamping onto free iron, it removes the spark before the fire starts. It starves the invader and it denies the fire its fuel with a single action.

That’s killing two birds with one stone.

So now that we know this, we can reframe what we “think” we knew abou iron. Iron is not simply good or bad, and the endless supplement debates simply put the forest before the trees. THE KEY is that iron held properly builds you and iron running loose DESTROYS you. The difference between those two states is whether you have enough of the proteins that keep it under control.

Look at it like a lit match dropped in a dry forest (not a good situation). Lactoferrin is the foot promptly stamping out the sparks before a uncontrolled forest fire begins.

It Also Carries a Knife

Tucked inside the lactoferrin molecule is a short fragment called lactoferricin. When lactoferrin gets broken down in your digestive tract, that fragment is released, and it does something completely different from iron binding.

It punches holes in bacteria.

Lactoferricin carries a strong positive charge. Bacterial membranes carry a negative one. The fragment is pulled straight onto the surface of the microbe like a magnet snapping to steel, and once it lands it disrupts the membrane and the cell falls apart.

So a bacterium that manages to find iron somewhere else still has a problem. Evading the fuel blockade does not save it from the knife.

Lactoferrin has a third job that matters just as much for anyone dealing with an autoimmune condition. It talks to your immune system. It influences the signaling molecules that turn inflammation up and down, helping mount a response when a threat is real and helping settle things once the threat has passed.

I want to be careful with how I frame that third role. The iron binding and the direct antimicrobial action are established at the molecular level and easy to demonstrate. The immune signaling effects are documented across many studies, and the full picture of how oral lactoferrin influences systemic immune regulation in adults is still being worked out. Treat the signaling piece as strongly supported and actively developing rather than settled.

What is not in question is the design. Your body built a protein that removes the enemy’s fuel, carries a weapon, and knows when to tell the guards to stand down. Then it packed the highest concentration of that protein into the very first meal of your life.

Which brings us to another problem.

All of this only matters if the lactoferrin in your colostrum is still alive by the time it reaches you.

Similar to probiotics, a dead guard is about as useful as a door with no handle.

And that is where this story takes a turn that most brands either don’t know about their product or don’t care to tell you.

Most Colostrum on the Shelf Is Biologically Dead

In 2020, a research team led by gastroenterologist Raymond Playford did something the supplement industry had somehow never bothered to do.

They bought twenty commercial colostrum products off the market and tested whether they actually worked.

Not whether the label was accurate. Whether the powder still had biological activity. They ran the samples against living intestinal cells and measured real function: could this colostrum make gut cells grow, and could it make them migrate to close a wound in the cell layer? Those are the actions that matter, the ones behind every benefit colostrum is sold for.

The results swung wildly from product to product.

Some samples performed powerfully. Others did close to nothing. Same category, same shelf, same promises on the front of the jar, completely different biology inside.

That alone should change how you shop. The next finding should change it permanently.

The researchers took colostrum powder and heated it. Sixty minutes at temperatures between 40 and 60 degrees Celsius, which is not extreme. That range is easily reached during industrial processing and easily exceeded in your kitchen.

The biological activity collapsed. Cell growth dropped. Wound closing dropped. The heated powder progressively lost the ability to do the things colostrum is supposed to do.

But this is the part that you should actually be concerned with.

The IgG measurement did not move.

The immunoglobulin content, the exact number printed on the front of the jar, the figure every brand advertises and every buyer uses to compare products, stayed essentially unchanged after the heat destroyed the function. Total protein was unaffected too.

A batch of colostrum can be cooked biologically lifeless and still test at twenty percent IgG.

Counting the IgG on a label is like counting the bricks after a house fire. Every brick is still sitting there. You can measure them, photograph them, put the number on your packaging. The house is gone.

Heat leaves the count intact and burns down the function.

The same study flagged a second variable. Colostrum bioactivity is highest in the very first milking after the calf is born, and it falls off measurably over the following days. A product made from milk collected on day three is a diluted version of one made from the first milking, regardless of what either label claims.

Think about what this means for the last colostrum you bought.

You compared jars. You looked at the IgG percentages, maybe compared price per serving, and picked the one that looked like the better deal. Every piece of information you used to make that decision was information that survives being cooked. The one variable that actually determined whether the product would do anything for you was invisible from the outside, unmentioned on the packaging, and impossible to compare.

That is not a small gap in consumer information. That is the entire category being sold on a number that stops meaning anything the moment heat enters the room.

It also explains something that has frustrated researchers for years. Clinical trials on colostrum come back inconsistent, with some showing strong effects and others showing very little. When the test material itself varies this much in biological activity between products, and nobody was measuring that activity before running the studies, some of that inconsistency was baked in before the first subject ever swallowed a capsule.

One note on this cited source, because we need to hold to a standard: the Playford paper discloses funding involvement from a colostrum producer. That does not invalidate the heat findings exactly, which are straightforward laboratory measurements and consistent with what heat does to bioactive proteins generally. I am telling you so you can weigh it yourself.

How to Actually Buy Colostrum

Here’s a quick list on how you can vet your colostrum…

1. Find out how it was dried.

This is the criterion that separates living colostrum from expensive powder, and it is the one almost nobody checks. Colostrum has to be turned from liquid into powder somehow, and the cheapest way to do that is with heat. High heat processing is fast, it is cheap, and based on what Playford’s team measured, it guts the biology while leaving your label numbers perfectly intact.

If a company cannot tell you how it dries its colostrum, assume the worst. A brand that invested in low heat processing will tell you, because that investment is expensive and it is the whole reason their product works. Naked Nutrition uses low heat drying, and that is the specific reason I use it.

2. Look for a guaranteed immunoglobulin level, verified by an outside lab.

I just spent a thousand words telling you the IgG number does not prove potency, so let me be precise about why it still matters.

IgG tells you the raw material was rich and the batches are consistent. It does not tell you the biology survived processing. You want both, and neither one substitutes for the other. A guaranteed and independently verified IgG level tells you the company is measuring what goes into the jar instead of hoping. Naked Nutrition guarantees its immunoglobulin content and tests outside its own walls.

Any brand advertising a big IgG number while staying silent about processing is telling you which half of the equation they care about.

3. Read the ingredient list and count the words.

Colostrum should be colostrum. One ingredient.

Fillers, gums, sweeteners, and proprietary blends are where quality hides. A proprietary blend exists so you cannot see the ratios, and there is no version of that arrangement that benefits you. Naked Nutrition is a single ingredient.

4. Check the animals.

You are buying an immune signal produced by a living cow, which makes the health of that cow part of the product. Look for grass fed, no added hormones, no rBST or rBGH, and farms the company can actually name. Naked Nutrition sources from US grass fed dairy without added hormones.

5. Watch how the company talks.

Colostrum supports your gut barrier and your immune defenses. It does not cure autoimmune disease, reverse aging, or replace anything your doctor prescribed. A brand promising miracles is selling something other than science, and that is the loudest quality signal available to you.

Every one of these five checks exists to protect the same two things: live lactoferrin and intact immune factors. That is what you came for. Everything else on the label is packaging.

A quick word on where colostrum sits next to the other gut supplements people ask me about. Whey builds muscle. Collagen supplies raw material for connective tissue. Colostrum carries immune signaling and barrier support, which puts it upstream of both. They solve different problems and I am not going to pretend one replaces another.

Do Not Undo the Farmer’s Work

You can buy the best colostrum on the market and destroy it in your own kitchen in about four seconds.

Mix it cold.

That is the whole rule, and it follows directly from the Playford data. If sixty minutes at moderate heat wrecks bioactivity in a laboratory, dropping that powder into fresh coffee or hot tea does the same thing to your morning scoop. You paid for living protein and turned it into expensive dust before the mug reached your lips.

Cold water. Cold milk. A smoothie. Room temperature anything. Stir it into yogurt if you want. Just keep it away from heat.

Toasting a probiotic would strike you as absurd. Boiling colostrum is the same mistake wearing a different outfit.

For dosing, follow the serving size on the label rather than a number I made up. Most people take it in the morning, and taking it on a relatively empty stomach gives it a cleaner run at your gut lining before a full meal arrives. Consistency does more for you than dose escalation. Daily beats heroic.

Some people should be cautious, and I would rather say this plainly than bury it.

Colostrum is a dairy product. A true dairy allergy is a real contraindication and not something to experiment around. If you are pregnant, immunocompromised, managing an inflammatory bowel condition, or taking medication that affects your immune system, talk to your clinician before starting. The research on colostrum in inflammatory bowel disease specifically discusses both benefits and situations calling for caution, which is exactly the nuance a supplement label will never give you.

Let me also be straight about the state of the evidence, since that is the standard I hold everyone else to.

The iron binding chemistry is rock solid and demonstrable in a test tube. The direct antimicrobial action of lactoferricin is well established. The strongest clinical work on colostrum as a whole sits in gut barrier protection and immune resilience, with good randomized data behind it. The broader claims about systemic immune regulation from oral supplementation are supported and still developing.

That is an honest picture. It is also a better one than almost anything else in the supplement aisle can claim.

The Unknown Tool You Were Born Using

Come back to the paradox we started with.

Iron keeps you alive, and iron feeds the things that want you dead. Your body has been solving that riddle every second since you were born, using tools you never knew you had.

One of those tools was handed to you before you could see, before you could speak, before you had any immune memory at all. A thick, golden, unglamorous first meal loaded with the protein that stands at your borders and takes the fuel away from anything trying to get in.

You drank it once. Then you spent decades wearing down the barrier it was built to protect, and nobody ever told you the tool existed.

Colostrum is not a trend. It is not a hack. It is reclaiming a signal that evolution already wrote for you and that modern life quietly deleted from your diet.

You cannot control every invader that shows up at the door. You can control whether there is a guard standing at it, and whether the guard you paid for is still breathing when it arrives.

If you missed it, my full guide to colostrum and gut barrier repair covers the other half of this story. Start there if you want the complete picture.

Sincerely your friendly neighborhood health nerd,

Ryan

References

1. Playford RJ, Cattell M, Marchbank T. Marked variability in bioactivity between commercially available bovine colostrum for human use; implications for clinical trials. PLoS ONE. 2020;15(6):e0234719. PMID 32555629. PMC7299325. Correction published: PLoS ONE. 2020;15(10):e0240392. License: CC BY 4.0.

2. Michels K, Nemeth E, Ganz T, Mehrad B. Hepcidin and Host Defense against Infectious Diseases. PLOS Pathogens. 2015;11(8):e1004998. PMID 26291319. PMC4546197. CC BY 4.0.

3. Rosa L, Cutone A, Lepanto MS, et al. Lactoferrin from Bovine Milk: A Protective Companion for Life. Nutrients. 2020;12(9):2562. DOI 10.3390/nu12092562. CC BY 4.0.

4. The Multifaceted Functions of Lactoferrin in Antimicrobial Defense and Inflammation. Biomolecules. 2025;15(8):1174. PMC12384211. CC BY.

5. Ferroptosis in Human Diseases: Fundamental Roles and Emerging Therapeutic Perspectives. Antioxidants. 2025;14(12):1411. CC BY.

6. Programmed Cell Death by Ferroptosis: Antioxidants as Mitigators. PMC6801403. CC BY.

7. Supplementation of Bovine Colostrum in Inflammatory Bowel Disease: Benefits and Contraindications. PMC8009748.

8. Playford RJ, Weiser MJ. Bovine Colostrum: Its Constituents and Uses. Nutrients. 2021;13(1):265.

He had the worst histamine week of his life on a beach in Mexico.

This was a client whose safe food list had shrunk to eleven items. Two years of careful elimination had taken him from a normal diet down to chicken, white rice, zucchini, and a short list of things he ate on rotation because he was scared of everything else. He had the DAO enzyme. He had the quercetin. He had a spreadsheet to track everything reaction, metric and still felt like a person treading water.

Then his sister got married in Tulum, and he decided he would rather feel awful for a week than explain his spreadsheet to sixty relatives. So he ate. Aged manchego at the welcome dinner. Two glasses of red wine at the reception. Leftover carnitas the next day, reheated, which is supposedly the “histamine cardinal sin.” Ceviche. More wine.

By every rule he had been following, he should have been covered in hives by Wednesday.

Instead he had the best week he had felt in two years. No flushing. No early a.m. heart pounding. He slept. He came home, went back to his eleven foods, and was flaring again within four days on plain chicken and rice.

Sit with that, because it breaks the whole model of what we think we know about histamine intolerance, at least it broke the model for me. He ate the most histamine-loaded food of his adult life and got better. He ate his safest possible food and got worse. If histamine in food were driving this, that should not happen. Not once, not like that.

So here is the contrarian claim I’m going to try and defend in this article. The low histamine diet is not wrong, exactly. It is aimed at the wrong variable. For a lot of people it is a very difficult, very expensive way to manage a symptom while the actual driver goes completely untouched, sitting in plain sight, every single day.

Something changed in Mexico. It was not the food. It was the same thing your histamine system was built to monitor from the beginning, and almost nobody in this conversation is talking about it.

Let’s explore a lesser known side of histamine and it’s role in the body shall we? Hopefully it helps you put some pieces of your own puzzle together

TLDR

• Histamine is not only an allergy chemical. It also helps run your body’s water conservation system.

• Histamine triggers the release of vasopressin, the hormone that tells your kidneys to hold onto water.

• Your mast cells, the cells that store histamine, fire when the fluid around them gets too concentrated or too watered down.

• Dehydration is exactly that kind of stress. So running low on body water can push your histamine load up.

• Drinking plain water alone does not fix this and can sometimes make it worse. Your cells need minerals to actually hold water.

• Fixing your hydration and minerals will not cure true mast cell disease. But it removes a daily trigger that most people never check.

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On a July morning in 2026, a congressman on the House floor pulled out his phone and played “Here Comes the Sun.”

He was celebrating. The House had just voted 308 to 117 to lock the clocks on daylight saving time forever. The bill is called the Sunshine Protection Act. It sounds warm. It sounds healthy. It sounds like a gift.

It is none of those things. Because the one thing permanent daylight saving time does not protect is your sunshine. It hides your morning sun and hands the evening a little extra. And your body clock, the ancient timekeeper running every cell you own, does not care about your evening plans. It cares about the sunrise. This bill takes the sunrise away.

TLDR

• The House passed permanent daylight saving time. It now goes to the Senate.

• Permanent daylight saving time pushes your clock an hour off the sun all year. Dark mornings, bright late evenings.

• Your master clock sets itself with morning light. Take away morning light and the whole system drifts late.

• Every sleep and circadian science group backs the opposite fix: permanent standard time.

• The “spring forward” jump is a yearly experiment. Heart attacks, strokes, and crashes spike right after it.

• Permanent daylight saving time is closer to a permanent “spring forward” than most people realize.

• The real driver behind the bill is money, not health. Evening daylight sells more gas, food, and rounds of golf.

• You can protect your own clock no matter what Congress does. The protocol is at the bottom.

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Your Body Runs on a Clock, and the Sun Winds It

You have a master clock. It sits behind your eyes in a tiny patch of brain called the suprachiasmatic nucleus, or SCN. I covered this in full in my Circadian Biology 101 breakdown, so here is the short version.

Special cells in your eyes catch light and send a wire straight to that clock. The clock then tells every organ what time it is. It fires cortisol to wake you up. It holds melatonin back until dark. It sets your body temperature, your blood pressure, your hunger, and your repair crews on a 24 hour loop.

Here is the catch. Your inner clock does not run at exactly 24 hours. It runs a little long. So every single day it needs a reset, or it drifts. That reset button is morning light. Bright light in the first hours after you wake tells the clock, “This is the start of the day. Sync to now.”

Think of it like a wind up watch that loses a few minutes each day. Morning sun is the daily wind. Miss the wind and the watch falls behind. Miss it for weeks and you are living in the wrong time entirely.

This is why sunrise light matters more than any other light you get. It is not a nice to have. It is the anchor.

Permanent Daylight Saving Time Robs You of That Morning Anchor

Now picture the bill in action. Permanent daylight saving time keeps the clocks pushed one hour ahead of the sun, all year, forever.

In winter, that is brutal. In much of the country the sun would not clear the horizon until 8 or even 9 in the morning. You would wake in the dark. You would drive to work in the dark. Kids would wait for the school bus in the dark.

So the exact moment your clock is begging for its reset, the light is gone. You give it a phone screen and a kitchen bulb instead. Those are far too dim and far too blue to do the job. The clock stays unanchored and drifts late.

We already ran this experiment. In 1974 the country tried permanent daylight saving time. Within weeks people hated it. Children were walking to school in pitch black winter mornings. Parents revolted. Congress reversed the law in under a year.

The bill that just passed the House forgets that lesson on purpose. Its backers talk about bright evenings and never mention the dark mornings that come with them. You cannot add light to the evening without taking it from the morning. The sun does not make more daylight because Congress moved a number.

Your clock will feel that trade every winter morning. And a clock that never gets its anchor is a clock that runs your body on the wrong schedule.

The Spring Forward Spike Is Proof

You do not have to guess what happens when you steal morning light. We do it once a year, every spring, and the damage shows up in hospitals.

When the clocks jump forward, you lose an hour of sleep and your clock lands an hour off the sun overnight. That is a tiny shift. Your body treats it like a punch.

In the days right after the spring change, heart attacks go up. A landmark study in the New England Journal of Medicine found the risk of heart attack rose in the first three weekdays after springing forward. Later reviews pooled data from many countries and confirmed it. One meta analysis of over 100,000 people found heart attack risk climbed about 5 percent in the week after the spring shift.

It is not just hearts. Strokes tick up. Fatal car crashes tick up. Workplace injuries tick up. Even mood takes a hit, with more reports of low mood in the weeks after the change.

Now connect the dots. Permanent daylight saving time is not a one day jump. It is closer to holding your body in that spring forward state for months on end, every winter, because the sun stays an hour behind your clock the whole season.

The yearly spike is your body screaming at a single one hour mismatch. This bill would make a version of that mismatch your new normal for the darkest part of the year.

Living in the Wrong Time Zone, on Purpose

There is a name for what happens when your inner clock and your outer schedule stop matching. Scientists call it circadian misalignment. In everyday life the milder version is called social jetlag.

Social jetlag is the jet lag you get without a plane. Your body wants one schedule. Your alarm, your job, and your light exposure force another. The gap between them wears you down.

Here is why this matters for the bill. Permanent daylight saving time is a form of built in social jetlag for the whole country. It sets the official clock an hour ahead of your biological clock and locks it there. You are not flying anywhere, but your body spends every winter feeling like it moved a time zone east and never adjusted.

That gap is not harmless. Research links chronic circadian misalignment and social jetlag to higher rates of obesity, type 2 diabetes, heart disease, and depression. When your clock and your world disagree, your metabolism, your hormones, and your mood pay the tab.

Standard time shrinks that gap. It keeps clock noon close to sun noon, which is exactly what your body evolved to expect. Permanent daylight saving time widens the gap and calls it a benefit.

You would not choose to feel jet lagged all winter. This bill chooses it for you.

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Standard Time Is Your Body’s Home Base

If daylight saving time is the wrong setting, what is the right one?

Standard time. It is the setting where clock noon sits closest to the moment the sun is highest in the sky. That is not a random choice. It is the arrangement your biology was built around across every generation before the light switch existed.

Under standard time, light comes early. Your clock gets its morning anchor near the time you naturally wake. Cortisol rises with the sun the way it is supposed to. The whole day starts on time.

Just as important, standard time lets the evening go dark on schedule. Darkness is the cue that releases melatonin, the hormone that runs your deep repair overnight. Bright evening light delays that release and shortens your window for real recovery.

Permanent daylight saving time does the opposite on both ends. It hides the morning light you need and stretches the evening light that keeps melatonin locked up. Late light in, late melatonin out, later and worse sleep. (The claim that this evening light shift meaningfully worsens long term health outcomes for the whole population is supported by circadian theory and the misalignment data, though direct multi decade trials on permanent daylight saving time do not exist. I am labeling that as a strong hypothesis, not settled fact.)

This is why the American Academy of Sleep Medicine, the Sleep Research Society, and every major circadian science group land in the same place. They do not want the clock changing twice a year either. But when forced to pick one setting to keep forever, they pick standard time, because it aligns best with human biology.

Follow the Money, Not the Sunshine

So if the science points to standard time, why did the House vote the other way?

Follow the evening light. That extra hour of daylight after work is not really for your health. It is for your wallet, or more honestly, for someone else’s cash register.

When it is bright after work, people go out. They shop. They fill the gas tank for one more errand. They hit the driving range, the patio, the ballpark, the store. That is why the loudest historical support for daylight saving time has come from retail, recreation, and the chamber of commerce, not from doctors.

The lawmakers pushing this bill said the quiet part out loud. They framed it around the modern economy, around consistency for business, around more usable evening daylight for spending. Health was the wrapper. Commerce was the gift inside.

The old excuse was that daylight saving time saves energy. That myth is dead. When Indiana rolled daylight saving time out statewide, researchers found home electricity use went up, not down, because people ran more air conditioning and heat in those extra bright evening hours. (I am flagging this specific study for you to re verify, but the direction of the finding is well established.)

So here is the trade the bill offers you. Give up your morning sun, the one input your body cannot function without, so the evening economy gets a boost. Your heart, your sleep, and your metabolism cover the cost. The register rings.

That is not sunshine protection. That is sunshine relocation, moved to the hour that sells the most stuff.

Your Protocol: Protect Your Clock No Matter What Congress Does

You do not control the Senate. You control your light. Here is how to defend your morning anchor even if permanent daylight saving time becomes law.

1. Get outside within 30 to 60 minutes of waking. No sunglasses. No window glass in the way. Even on a gray day, outdoor light is many times brighter than your kitchen. Aim for 5 to 10 minutes on a bright morning, 15 to 20 on an overcast one.

2. Wake at the same time every day. Weekends included. A steady wake time is the second half of the anchor. This alone shrinks your social jetlag.

3. If your winter sunrise comes late, bridge the gap. Use a bright light source or a red light panel to start your day, then get real sun the moment it is available. My free Sun Prep timing tool at RedLightTimer.com helps you sequence panel time before sun exposure.

4. Kill the evening light. Dim the house after sunset. Cut screens or switch them to warm, low settings. Candles or a red bulb in your main rooms tell your body that night has come. I keep a red bulb in every main room for exactly this.

5. Anchor your meals to the sun, not the clock on the wall. Eat your biggest meal earlier in the day. Stop eating well before bed. Late food is another signal that drags your clock off track.

6. Protect the dark. Blackout the bedroom. Your overnight repair crews need true darkness to run.

Troubleshooting and Self Check

“I get morning light and still feel wrecked.” Check your evening. Bright light after dark can cancel out a good morning. Fix the night first.

“I cannot get outside before work in winter.” Use bright indoor light or a panel as a bridge, then step outside at your first real chance, even at lunch. Some morning anchor beats none.

“How do I know if I am misaligned?” Ask yourself: Do you feel wired at night and dead in the morning? Do weekends look completely different from weekdays? Do you dread dark commutes? Those are social jetlag flags.

“Does one hour really matter?” The spring forward data says yes. A single hour of mismatch moves heart attack and crash numbers across whole populations. Your body is more sensitive to this than you think.

The Sun Is Not Yours to Move

The congressman who played “Here Comes the Sun” had it backwards. You cannot make the sun come sooner by voting. You can only decide whether your clock gets to meet it.

Permanent daylight saving time tells your body the sun is late all winter, then asks your heart and your sleep to absorb the difference so the evening economy can grow. Standard time does the humble thing. It keeps your clock close to the sky and lets your morning light land where your biology expects it.

The Senate has not voted yet. But whatever they decide, the sunrise is still the most powerful health tool you own, and it is free. Go meet it tomorrow. Your clock is waiting for the wind.

Sincerely your friendly neighborhood health nerd,

Ryan

References

1. U.S. House of Representatives. H.R. 139, the Sunshine Protection Act. Passed 308 to 117, July 14, 2026.

2. Rishi MA, Cheng JY, Strang AR, et al. Permanent standard time is the optimal choice for health and safety: an American Academy of Sleep Medicine position statement. J Clin Sleep Med. 2024. DOI 10.5664/jcsm.10898.

3. Janszky I, Ljung R. Shifts to and from daylight saving time and incidence of myocardial infarction. N Engl J Med. 2008;359(18):1966-1968. DOI 10.1056/NEJMc0807104.

4. Manfredini R, et al. Daylight Saving Time and Acute Myocardial Infarction: A Meta-Analysis. J Clin Med. 2019. PMC6463000.

5. Rishi MA, et al. (review) Acute Myocardial Infarction and Daylight Saving Time Transitions: Is There a Risk? Clocks & Sleep. 2021. PMC8628759.

6. Caliandro R, et al. Social Jetlag and Related Risks for Human Health: A Timely Review. Nutrients. 2021;13(12):4543.

7. Yamamoto et al. Relationship between Circadian Phase Delay without Morning Light and Phase Advance by Bright Light Exposure the Following Morning. Photonics. 2023;5(4):41. MDPI.

8. Kotchen MJ, Grant LE. Does Daylight Saving Time Save Energy? Evidence from a Natural Experiment in Indiana.

9. Meta-analysis of DST transitions and heart attack risk. Dtsch Arztebl Int. 2024. PMC11526362.

Picture a wrecking ball the size of a pinhead. It slips into your cells, finds the tiny power plants that run your entire body, and starts swinging. Years later, it is still in there. Still swinging.

That is what a fluoroquinolone antibiotic can do. Cipro. Levaquin. The pills your doctor handed you for a bladder infection or a sinus thing that would not quit. You trusted the person in the white coat, filled the script, and swallowed it with a glass of tap water. Nobody told you that the FDA has slapped its most serious black box warning on this drug class more than once. Nobody mentioned the tens of thousands of people over on r/floxies trading notes about ruptured tendons, burning nerves, and brains that stopped working the way they used to.

I have watched a perfectly healthy 41 year old get leveled by a single course of ciprofloxacin. One infection. One “safe” prescription. Then months of the kind of suffering that makes people question whether they will ever feel normal again. This is the reality of fluoroquinolone associated disability, or FQAD, and if you are reading this because it happened to you or someone you love, you are in the right place. You are not crazy, you are not making it up, and you are not stuck. There is a way out, and it starts with understanding exactly what these drugs broke so you can rebuild it piece by piece.

TLDR

Fluoroquinolones (Cipro, Levaquin, and friends) poison your mitochondria because your mitochondria are descended from bacteria and share the same DNA machinery the drug was built to attack. The result is broken mitochondrial DNA, wrecked energy production, a flood of oxidative stress, stolen minerals, collagen breakdown, a hijacked nervous system, and a gut in ruins. Recovery is not one magic pill. It is a layered rebuild: saturate your minerals (magnesium first), refill your antioxidant tanks (NAC, CoQ10, PQQ, vitamin C and E, selenium), support your detox pathways, calm and feed your nervous system, and repair your gut. Below is the full mechanism and the full protocol, doses included, so you can start reverse engineering the damage today.

This one is a deep dive. If you want the complete mechanism breakdown, the exact supplement doses, the lab interpretation, and the troubleshooting sequence, it lives behind the paywall.

Upgrade to paid to read the full protocol for $9.99/month or $80/year ($6.67/month). One recovery protocol pays for itself many times over compared to what the medical system will charge you to stay sick.

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You’ve been handed four diagnoses by four different doctors, and not one of them told you they’re connected.

The endocrinologist gave you Hashimoto’s. The allergist called it histamine intolerance. Someone else stamped your fatigue with a label that means “we don’t know.” And when the anxiety crept in, a fifth office wrote you a prescription and sent you home. Five doors, five specialists, five unrelated names for what’s happening inside one body. Yours.

Here’s what none of them said. Every one of those diagnoses is sitting downstream of a single event happening inside your cells right now. Conventional medicine is very good at naming the branches. It is almost blind to the root. So it treats the leaves that fell off the tree and wonders why more keep falling.

That root has a name. Robert Naviaux, a physician-scientist at UC San Diego, spent years mapping it and called it the Cell Danger Response. Your cells have an ancient survival program built to switch on the moment they sense a threat and switch back off the moment the threat clears. In you, it switched on and forgot how to stand down. Everything you’ve been diagnosed with is what a stuck survival switch looks like from the outside.

TLDR:

The Cell Danger Response (CDR) is your cell’s built-in defense mode. It’s supposed to fire during a threat and shut off during safety. When it gets stuck in the “on” position, your mitochondria stop making energy and start broadcasting alarm instead. That alarm shows up as autoimmunity in one person, mast cell chaos and histamine symptoms in another, crushing fatigue in a third, and mood disorders in a fourth, depending entirely on your terrain. You don’t heal by silencing the alarm with one more drug. You heal by removing the threat signal so the healing cycle can finally finish.

This article will walk you through the full mechanism, then delivers you a troubleshooting checklist to find your own stuck inputs in order to help you change the outputs.

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You’ve done “everything right” but are still reacting to everything…

You cut out the aged cheese. You poured out the wine. You stopped eating leftovers, swore off fermented anything, and started buying meat the same day you cook it. For a while it helped. Then one Tuesday you ate a perfectly “safe” meal and your face went hot, your heart started pounding, and that familiar wave of anxiety rolled in from nowhere. So you cut more foods. And the list of things you can eat keeps shrinking while the reactions keep coming.

That cycle has a name nobody handed you on your way out of the appointment. The low-histamine diet treats histamine like it’s only something you eat. It isn’t. Histamine is something your body has to break down and haul away, and the speed you do that at is partly written into your genes. When the breakdown is slow, the food restriction can only take you so far, because the problem was never just what was going in. It was what wasn’t coming out.

TLDR: What You’ll Learn In This Article

Histamine intolerance and MCAS often get treated as input problems, so people get handed an elimination diet and sent home. But histamine is a two-sided equation: how much comes in versus how fast you clear it. Two enzyme systems do the clearing. DAO breaks histamine down in your gut. HNMT breaks it down inside your cells using a methyl group. A third enzyme, COMT, doesn’t touch histamine directly, but it competes for the same methylation resources and clears the stress hormones and estrogen that crank histamine release up. When COMT runs slow, the whole drainage system backs up, and your “histamine bucket” overflows at lower and lower triggers.

Methylation is the engine room behind HNMT and COMT. It’s a chemical process that hands out methyl groups, and both enzymes need those groups to do their job. Poor methylation means slow HNMT and slow COMT, which means histamine and stress chemistry stick around longer than they should. Add MCAS, where mast cells dump histamine faster than a normal person’s, and you get the version of histamine intolerance that no diet ever fully fixes.

In this article I’ll walk through the full drainage system, explain why slow clearance creates the “I react to everything” pattern, show you how to get your own genetics tested, and use my own results as a worked example. Then I’ll give you the actionable part: how to play the hand you were dealt across several different genetic scenarios, because your genes load the gun but your environment, nervous system, and nutrient status are what pull the trigger. You are not stuck with your COMT status. You can support the entire system around it.

This article is a sneak peak at the depth I post every Saturday. If you enjoy this and would like to support my work consider upgrading to premium for just the price of a cup of coffee a month ($80/year or $6.67/month) you gain access to all of my other deep dives/specific protocols on supplements and for conditions for life.

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The bucket nobody explained to you

Picture a bucket with a faucet running into it and a drain at the bottom. The faucet is everything that adds histamine to your body. The drain is everything that clears it out. As long as the drain keeps up with the faucet, the bucket stays low and you feel fine. You can eat the strawberries, have the glass of wine, get a little stressed, and the bucket handles it.

Trouble starts when the faucet runs faster than the drain. The level climbs. Once it reaches the rim, the next small thing, a single ferment, one stressful email, a warm afternoon, sends it over the edge. That overflow is your symptoms: the flushing, the racing heart, the headaches, the hives, the 2 a.m. wide-awake feeling, the anxiety that arrives without a reason.

Most people only ever get told to turn down the faucet. Eat less histamine. Avoid the triggers. That’s real advice and it matters, but it leaves half the equation untouched. If your drain is narrow to begin with, you can turn the faucet way down and still spill, because the water just sits there with nowhere to go. The people who cut every trigger and still react are almost always people with a clearance problem, not an intake problem.

So let’s look at the drain. It has more parts than you’d think.

Meet the two enzymes that break histamine down

Your body clears histamine through two main routes, and they work in different places.

The first is DAO, short for diamine oxidase. DAO lives mostly in your gut lining, and its job is to mop up the histamine in the food you eat before it ever gets into your bloodstream. Think of DAO as the bouncer at the door of your intestines. When a wave of histamine arrives from a meal, DAO meets it at the entrance and breaks it down on the spot. If you have plenty of DAO working well, dietary histamine barely registers. If your DAO is low or sluggish, that food histamine walks right past the bouncer and into circulation, and now your whole body has to deal with it.

The second route is HNMT, short for histamine N-methyltransferase. This one works inside your cells, breaking down the histamine that’s already in your tissues, especially in places like the brain, the airways, and the skin. Here’s the part that connects everything: the way HNMT breaks histamine down is by attaching a methyl group to it. That little chemical tag changes the histamine into a form your body can finish off and clear. No methyl group available, no breakdown.

So you have two drains. DAO handles the histamine coming in from food at the gut door. HNMT handles the histamine already inside you, and it does that job using methylation. Hold onto that, because it’s the thread that ties histamine to COMT and to the whole methylation story.

Where COMT walks into the room

COMT stands for catechol-O-methyltransferase. It does not break down histamine. That’s worth saying plainly, because people online sometimes act like COMT is a histamine enzyme, and it isn’t. So why does it matter so much for histamine people?

Two reasons, and they’re both important.

The first reason is competition. COMT clears a group of stimulating chemicals called catechols. That includes your stress hormones, adrenaline and noradrenaline, plus dopamine and a set of estrogen breakdown products. The way COMT clears all of them is by attaching a methyl group, exactly like HNMT does to histamine. Both enzymes are reaching into the same jar of methyl groups to get their work done. When that jar runs low, or when one enzyme is hogging the supply, the other one slows down. A body that’s burning through methyl groups clearing a flood of stress hormones has fewer left over to help HNMT clear histamine. The two systems are quietly fighting over the same resource.

The second reason is upstream. COMT clears the very things that tell your mast cells to release more histamine in the first place. Stress hormones are a release signal for mast cells. Estrogen is a release signal too, and it also lowers your DAO. So when COMT runs slow and stress chemistry and estrogen pile up, they don’t just sit there harmlessly. They walk over to your mast cells and pull the trigger, dumping more histamine into a bucket that’s already struggling to drain. Slow COMT widens the faucet and narrows the drain at the same time.

That’s the whole reason a “histamine problem” can actually be a COMT problem. The histamine you can measure is the smoke. The slow clearance of stress hormones and estrogen, and the competition for methyl groups, is part of the fire.

Methylation, in plain language

I keep saying methyl group, so let me make it concrete, because this is the engine room and it’s worth understanding instead of just nodding along.

A methyl group is a tiny chemical tag. Picture a single Lego piece, one carbon with three hydrogens stuck to it. Your body uses these tags constantly, sticking them onto things and pulling them off, to switch processes on and off, to build and break down chemicals, and to clear waste. Attaching one of these tags to a molecule is called methylation. It’s one of the most common chemical moves your body makes, happening billions of times a second.

Where do the tags come from? Your body runs a recycling loop that keeps producing the universal tag, a molecule called SAMe (you’ll see it written that way, it stands for S-adenosylmethionine). SAMe is the delivery truck that carries methyl groups around and hands them out. HNMT takes a tag from SAMe to clear histamine. COMT takes a tag from SAMe to clear stress hormones and estrogen. Dozens of other processes take tags too.

That recycling loop needs raw materials to keep running. The big ones are folate (B9), B12, B6, riboflavin (B2), and choline, plus the mineral magnesium, which COMT specifically needs to function. If you’re short on those, or if the genes that run the loop work slowly, you produce fewer tags. Fewer tags means HNMT and COMT both slow down, because they’re standing at the supply window waiting for a delivery that’s running late.

This is the picture: methylation makes the tags, the tags power the enzymes, the enzymes clear histamine and the chemistry that drives histamine. Weaken the engine room and the whole drainage system downstream gets sluggish at once.

What “slow COMT” and “slow MTHFR” actually mean

You’ll see two gene names over and over in this world, so let’s demystify them.

COMT comes in faster and slower versions, decided mostly by a single spot in the gene called Val158Met (its technical label is rs4680). You inherit two copies, one from each parent. Roughly speaking, the “Val” version runs fast and the “Met” version runs slow. So you can be fast/fast, slow/slow, or one of each. Fast clearers blow through dopamine and stress hormones quickly, which can help under pressure but can leave them feeling flat when calm. Slow clearers hold onto that chemistry longer, which can mean sharper focus when life is steady and a much harder time coming down when life is not. The one-of-each people sit in the middle.

Slow COMT is not a disease and it is not bad. In calm conditions it can be an asset. It only becomes a problem when the load gets high, when stress, poor sleep, stimulants, and hormone shifts stack up faster than a slower enzyme can handle.

MTHFR is one of the genes that runs the methylation recycling loop. Its job is to convert folate into the active form the loop can actually use. The two common variants are called C677T and A1298C. A reduced-function copy here means you convert folate less efficiently, so the loop has a harder time keeping the tag supply full. People often carry one variant from each, which is called being compound heterozygous, and that combination can take a meaningful bite out of methylation capacity. The practical effect: less raw material reaching the supply window, so HNMT and COMT both feel the pinch.

Neither of these genes is destiny. They’re a starting hand. The rest of this article is about how you play it.

Why this creates the “I react to everything” person

Now stack the pieces and you can see the trap clearly.

Say your DAO runs low, so food histamine slips past the gut bouncer. Your HNMT runs slow, so the histamine that’s already inside you clears at a crawl. Your COMT runs slow, so stress hormones and estrogen linger and keep poking your mast cells to release more. And your methylation engine is underpowered, so the tags that HNMT and COMT both depend on are in short supply. Every drain is partly clogged and the faucet has extra hands on it.

In that body, the bucket sits near the rim almost all the time. You’re not reacting to a single food. You’re reacting to the total load. The strawberries plus the stressful week plus the warm room plus the wine plus the point in your cycle where estrogen is high. Any one of those alone might be fine. Together they spill. That’s why the elimination diet feels like it stops working. You can keep pulling triggers off the list, but if the bucket is permanently three-quarters full from poor clearance, it doesn’t take much to overflow, and the trigger that finally does it looks random.

This is also why the classic clues point at clearance rather than intake. You react to foods that aren’t even high in histamine. Caffeine hits you like a freight train, because caffeine is a stimulant that adds to the catechol load your slow COMT is already struggling with. The high-estrogen stretch of your cycle makes everything worse, because estrogen both triggers mast cells and suppresses DAO. Stress spikes your symptoms within minutes, because stress hormones are a direct mast cell trigger and a competitor for your methyl supply. And here’s the cruelest one: you feel worse, not better, on certain methyl supplements. We’ll get to why that happens, because it’s one of the most useful tells of all.

MCAS turns the faucet into a fire hose

Everything above describes histamine intolerance, where the drain can’t keep up. MCAS, mast cell activation syndrome, adds a second problem on the faucet side.

Mast cells are immune cells stationed all through your body, in your skin, gut, lungs, and around your blood vessels. They’re loaded with histamine and other inflammatory chemicals, and they release them in response to triggers. In MCAS, those mast cells are jumpy. They fire off their payload too easily and too often, from triggers that wouldn’t bother a calm mast cell, a temperature change, a smell, a food, a stressful moment, sometimes seemingly nothing at all.

So now picture the bucket with the faucet replaced by a fire hose that turns itself on at the slightest provocation. Even a wide-open, perfectly working drain would struggle. Pair that fire hose with the slow, clogged drain we just built, low DAO, slow HNMT, slow COMT, weak methylation, and you have the most stubborn version of this whole picture. The mast cells are over-dumping and the clearance can’t catch up, and no amount of careful eating closes the gap, because eating was never the main faucet to begin with.

This is the population that cuts everything and still reacts to everything. Not because they’re doing the diet wrong. Because the diet was only ever aimed at one small inlet while the fire hose ran unaddressed.

How to actually see your hand: getting your genetics tested

You can’t play a hand you can’t see. The good news is that the genes that matter most here are common, well-studied spots that consumer testing covers cheaply.

The usual path is to run a raw-data test first, then a third-party interpreter on top of it. The two big raw-data sources are 23andMe and AncestryDNA. Both spit your DNA onto a chip and give you a downloadable raw data file. On their own, neither tells you much about COMT or methylation. They’re the camera; you still need someone to develop the film.

For developing the film, a few options:

• Genetic Lifehacks (geneticlifehacks.com) is the one I lean on, and it’s what I’ll use for my own example below. You upload your raw file and it matches your variants to plain-English articles with the research linked. It covers COMT, MTHFR, HNMT, DAO, and the whole methylation crew. It’s affordable and the writing respects your intelligence without drowning you in jargon.

• Found My Fitness (Rhonda Patrick’s tool) takes a 23andMe or AncestryDNA file and produces a clean report heavy on the methylation and detox genes, with citations.

• Genetic Genie is a free, donation-based tool that produces a classic methylation and detox panel from raw data. Bare-bones, but it covers COMT, MTHFR, MTR, MTRR, and friends at no cost.

• StrateGene (Ben Lynch’s tool) is built specifically around the methylation cycle and maps your variants onto a pathway diagram, which is helpful if you’re a visual learner.

• SelfDecode is a pricier, more polished option that runs its own testing and layers reports on top, including histamine-specific panels.

One honest caveat that every good interpreter repeats: a gene variant tells you how an enzyme tends to behave, not how fast things are actually moving through your body right now. Genes are the starting hand, not the final score. Your sleep, food, hormones, stress, and gut all change how that hand plays out. Confirm anything that looks medically serious with proper testing and a clinician, and use the genetic report as a map, not a verdict.

A worked example: my own results

Let me make this real by putting my own cards on the table, because I sit squarely in the pattern this article describes.

My COMT (rs4680) comes back as one of each, the slow copy and the fast copy together. I’m an intermediate clearer. Not the slowest possible, but not a fast blow-through-it type either. Under calm conditions my catechol clearance is fine. Under a stacked load, late nights, caffeine, training hard, a stressful stretch, I hold onto that stress chemistry longer than a fast clearer would, and I feel it.

My MTHFR is where it gets interesting. I carry one reduced-function copy of C677T and one reduced-function copy of A1298C. That’s the compound heterozygous setup, a variant on each of the two common spots. The practical read: my methylation recycling loop runs at reduced capacity, so my supply of methyl tags is easier to run short than average. That matters for an intermediate-COMT person, because the supply window those tags come from is already feeding a COMT that needs help under load.

On the histamine side, my HNMT comes back homozygous for the reduced-breakdown variant, meaning the enzyme that clears histamine inside my tissues runs slow on both copies. And one of my DAO spots (the AOC1/ABP1 gene) carries a risk variant tied to lower DAO production, so my gut bouncer isn’t at full strength either.

Put it together and it reads like a textbook case. Both histamine drains are partly clogged, HNMT inside the cells and DAO at the gut. The COMT that competes for the same methyl tags is intermediate, so it gets sluggish under load. And the methylation engine that feeds all of it runs at reduced capacity because of the compound MTHFR. No single one of these is dramatic. Stacked together, they explain a low-rim bucket that spills more easily than it should.

I’ll also flag one more from my panel that ties in: my MTRR comes back homozygous for a variant that affects how I recycle B12 back into the methylation loop. B12 is one of the raw materials that keeps the tag supply running, so a hiccup there is one more small drag on the same engine. None of these are emergencies. They’re a profile. And a profile is something you can work with.

Here’s the most important thing my own results taught me, and it’s the lesson for anyone with this combination: the answer is not to bulldoze the system with high-dose methyl supplements. With reduced MTHFR you might assume the fix is to slam methylfolate and methyl-B12 to force the loop. For a lot of people with an intermediate-or-slow COMT, doing that backfires, and the reason is genuinely useful to understand.

Why methyl supplements can make you feel worse

This is the tell I promised to come back to, and it confuses people for years.

When you take a big dose of pre-methylated B vitamins, methylfolate and methyl-B12, you’re flooding the system with raw material to crank out methyl tags. The loop speeds up and tag production jumps. For someone with plenty of fast COMT, that extra supply gets used up smoothly. But if your COMT is slow or intermediate, you’ve just handed a flood of methyl groups to a system whose main clearing enzyme can’t keep pace. Methylation runs faster, more dopamine and noradrenaline get made and shuffled around, and the slow COMT can’t clear the resulting catechols fast enough. The result feels like being wired, anxious, racing, sometimes a histamine flare on top, because that same stress chemistry is poking your mast cells.

So the person reasons, correctly, “methyl supplements make me feel worse,” and often concludes their methylation is fine. Not necessarily. It can mean your supply is now outrunning your clearance. The fix usually isn’t zero methylation support and it isn’t a megadose. It’s a gentler, slower approach: support the engine with food and minerals first, use lower doses, and lean on non-methyl forms of the B vitamins when you’re sensitive. More on exactly how, next.

Playing the hand: the general framework

Before the specific scenarios, the universal moves, because they help almost everyone in this picture regardless of genotype. The goal is simple to state: make fewer histamine and stress surges, and help every drain run as well as it can.

Turn down the faucet you can control. Yes, lower dietary histamine, but think of it as load management, not a permanent cage. The aim is to drop the baseline so the bucket isn’t sitting at the rim, then slowly widen what you tolerate as clearance improves. Protect sleep ferociously, because sleep loss raises the stress chemistry your COMT has to clear the next day. Get morning light and keep a consistent wake time to steady your cortisol rhythm. Make caffeine smaller, earlier, and never on an empty stomach or a bad night, since it piles directly onto the catechol load.

Feed the engine before you push it. Methylation runs on folate, B12, B6, riboflavin, choline, and magnesium. Get these from food first, leafy greens, eggs, liver if you tolerate it, plus a magnesium most people are low in it and COMT specifically needs it. A well-fed engine with steady minerals does more than a megadose dropped onto an empty tank.

Help the drains clear what they make. Histamine and estrogen metabolites leave through the liver, bile, and bowel. The single least glamorous and most important move for a lot of people is simply pooping regularly, because backed-up bowels recirculate the very things you’re trying to clear. Fiber, hydration, and cruciferous vegetables (broccoli, sprouts) support that exit. Reducing or cutting alcohol helps on every front at once: it adds histamine, blocks DAO, and burdens the liver.

Calm the trigger finger. Your nervous system controls a lot of mast cell firing. Slow breathing with longer exhales, gentle evening walks, less doomscrolling, fewer late-night stress spikes, these aren’t soft extras, they directly lower the stress-hormone surges that trigger mast cells and compete for your methyl supply. For people with real trauma history, deeper nervous-system work is often where the stuck reactivity finally loosens.

Now the specifics, by the hand you were dealt.

Scenario one: slow or intermediate COMT, sensitive to everything stimulating

This is my lane, and the lane of most “wired but tired, can’t come down” people. Your clearing enzyme is on the slower side, so your whole strategy is to reduce the catechol load and supply methylation gently rather than forcefully.

Keep caffeine low, early, and after food, and notice how the high-stress and high-estrogen parts of the month change your tolerance. Be cautious with anything that spikes stress chemistry: stimulant pre-workouts, fasting straight into hard training, stacking cold plunges with caffeine. Move intense exercise earlier in the day and make sure you’ve eaten.

On supplements, go gentle. If you’re sensitive, favor non-methyl forms of B12 (hydroxocobalamin or adenosylcobalamin instead of methylcobalamin) and modest folate doses, and add magnesium, which supports COMT directly and tends to calm the system. If you trial any methyl donor, SAMe, TMG, methylfolate, start small and watch for the wired feeling that means you’ve outrun your clearance. The motto is escalate slowly, never megadose into a slow drain.

Scenario two: reduced MTHFR, worried you “have to” megadose methylfolate

The internet will tell you that an MTHFR variant means you must load up on methylfolate. For plenty of people, especially those who also run slow or intermediate COMT, that’s exactly the move that backfires.

Reduced MTHFR means your loop converts folate less efficiently, so you do want good folate status, but the route there is food folate and modest, well-tolerated doses, not a sledgehammer. Build the foundation first: protein, magnesium, riboflavin (B2, which MTHFR itself depends on), B12 sufficiency, and choline. Check your homocysteine with a simple blood test, since high homocysteine is a real sign the loop needs support and gives you something objective to track. If you supplement, start low and pay attention. If methylfolate makes you anxious or flared, that’s information, not failure, it usually means your supply is now outrunning a slow COMT, and you should ease off and go gentler. Riboflavin in particular is underrated here, because it helps the MTHFR enzyme work better without flooding the system with methyl groups.

Scenario three: low DAO, histamine hits hardest from food

If your DAO is the weak link, your gut bouncer is understaffed, so food histamine is your sharpest trigger and the gut is where your leverage is.

Lower dietary histamine as load management, eat fresh and avoid leftovers, since histamine builds as food ages. A DAO enzyme supplement taken before higher-histamine meals helps some people by reinforcing the bouncer at the door for that specific meal. Support the gut lining itself, because DAO is made there, so gut inflammation and leaky barriers drag DAO down; addressing gut health raises your own production over time. Watch alcohol closely, it directly blocks DAO, and watch estrogen-heavy windows, since estrogen suppresses DAO too. Certain other things lower DAO as well, including some medications, so it’s worth reviewing what you take with a clinician if food histamine is your dominant pattern.

Scenario four: slow HNMT, the inside-the-cell clearance is the bottleneck

When HNMT is your slow spot, the histamine already inside you, in your brain, airways, and skin, clears slowly, and this one leans hardest on methylation because HNMT runs entirely on methyl tags.

Everything that supports a steady, well-fed methylation engine helps HNMT directly: the food-folate, B12, B2, magnesium foundation, plus protecting the tag supply by not burning it all on stress chemistry. This is exactly where the COMT competition bites, so calming the stress load does double duty, fewer stress hormones for COMT to clear means more methyl tags left over for HNMT to clear histamine. People with slow HNMT often notice more of the “central” symptoms, sleep disruption, brain-fog, anxiety, and they tend to respond well to the combination of steady methylation support and serious nervous-system downshifting.

Scenario five: MCAS on top of any of the above

If your mast cells are over-firing, clearance support alone won’t be enough, because the fire hose keeps refilling the bucket. Here the clearance work above becomes the foundation, not the whole plan, and it pairs with calming the mast cells themselves.

That’s the territory of mast cell stabilizers and a structured, individualized plan, and it’s where working with a knowledgeable clinician matters most, because MCAS overlaps with conditions that need real medical evaluation. The clearance strategy still does real work, a body that drains well tolerates an over-firing mast cell population far better than one that’s already at the rim, but it sits alongside addressing the triggers and the firing itself rather than replacing that work.

Where to start this week

If you suspect this is you, don’t try to fix all five drains at once. Start by seeing your hand and lowering the baseline.

Order a raw-data test if you don’t have one, and run it through Genetic Lifehacks or one of the other interpreters so you can see your COMT, MTHFR, HNMT, and DAO status in plain English. While that’s processing, do the universal moves: drop the histamine load enough to get off the rim, protect sleep like it’s a job, make caffeine boring, feed the methylation engine with food and magnesium before touching any megadose, and start moving your bowels regularly so you stop recirculating what you’re trying to clear. Then calm the trigger finger with slower breathing and fewer late-night stress spikes.

Once you can see your genetics, match yourself to the scenario that fits and adjust from there, gently, one change at a time, tracking how you respond. The whole point is that none of this is fixed. Slow COMT, reduced MTHFR, low DAO, slow HNMT, these are starting conditions, not sentences. Your genes loaded the gun. Your sleep, your food, your nervous system, your hormones, and your nutrient status are the finger on the trigger, and every one of those is something you can change.

The low-histamine diet was never wrong. It was just half the story. The other half is the drain, and the drain is where the real freedom is, because a body that clears well can eventually handle the strawberries, the wine, the stressful week, and the warm afternoon all at once, without spilling.

If you enjoyed what you’ve read and you’d like access to more articles like this consider upgrading your subscription to premium for just $80/year or $6.67/month for life:

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Sincerely your friendly neighborhood health nerd,

Ryan

References

Comas-Basté, O., Sánchez-Pérez, S., Veciana-Nogués, M. T., Latorre-Moratalla, M., & Vidal-Carou, M. C. (2020). Histamine intolerance: The current state of the art. Biomolecules, 10(8), 1181. https://doi.org/10.3390/biom10081181

Dawling, S., Roodi, N., Mernaugh, R. L., Wang, X., & Parl, F. F. (2001). Catechol-O-methyltransferase (COMT)-mediated metabolism of catechol estrogens: Comparison of wild-type and variant COMT isoforms. Cancer Research, 61(18), 6716–6722.

Liu, X., Sun, X., Zhang, Y., & Chen, S. (2022). Methylenetetrahydrofolate reductase (MTHFR), the one-carbon cycle, and cardiovascular risks. Nutrients, 14(5), 1062. https://doi.org/10.3390/nu14051062

Hrubisko, M., Danis, R., Huorka, M., & Wawruch, M. (2021). Histamine intolerance—The more we know the less we know. A review. Nutrients, 13(7), 2228. https://doi.org/10.3390/nu13072228

Maintz, L., & Novak, N. (2007). Histamine and histamine intolerance. The American Journal of Clinical Nutrition, 85(5), 1185–1196. https://doi.org/10.1093/ajcn/85.5.1185

Naganuma, F., Nakamura, T., Yoshikawa, T., Iida, T., Miura, Y., Kárpáti, A., Matsuzawa, T., Yanai, A., Mogi, A., Mochizuki, T., Okamura, N., & Yanai, K. (2022). Histamine N-methyltransferase in the brain. International Journal of Molecular Sciences, 23(7), 3596. https://doi.org/10.3390/ijms23073596

Samavat, H., & Kurzer, M. S. (2015). Estrogen metabolism and breast cancer. Cancer Letters, 356(2, Pt. A), 231–243. https://doi.org/10.1016/j.canlet.2014.04.018

Valent, P., Akin, C., Bonadonna, P., Hartmann, K., Brockow, K., Niedoszytko, M., Nedoszytko, B., Siebenhaar, F., Sperr, W. R., Oude Elberink, J. N. G., Butterfield, J. H., Alvarez-Twose, I., Sotlar, K., Reiter, A., Kluin-Nelemans, H. C., Hermine, O., Gotlib, J., Broesby-Olsen, S., Orfao, A., … Metcalfe, D. D. (2023). Mast cell activation syndrome update—A dermatological perspective. International Journal of Molecular Sciences, 24(13), 11270. https://doi.org/10.3390/ijms241311270

Wang, X., Fenech, M. (2015). Homocysteine metabolism gene polymorphisms (MTHFR C677T, MTHFR A1298C, MTR A2756G and MTRR A66G) jointly elevate the risk of folate deficiency. Nutrients, 7(8), 6670–6687. https://doi.org/10.3390/nu7085303

Bryan Johnson spends two million dollars a year on his body.

He has more than thirty doctors. He tracks hundreds of biomarkers. He wakes at 4:30, finishes eating by noon, sleeps like it is a competitive sport, and has spent years trying to out-measure aging itself.

Last week his own stomach started eating itself.

He announced it on June 30th. Autoimmune gastritis. His immune system is attacking the acid-producing lining of his own stomach, and it had been doing it quietly for years while every dashboard he owns glowed green.

His anti-parietal-cell antibodies came back at 103. The ceiling for normal is 20. That is roughly five times over the line, in the most monitored body on the planet, caught almost by accident when a stubborn low iron reading finally forced someone to go looking.

Here is the part that should stop you cold. All that spending, all that testing, all that discipline, and the disease still walked in the front door.

I want to talk about why.

TLDR Bryan Johnson got an autoimmune disease despite a two-million-dollar protocol. His case is a warning about what happens when you optimize the top of the pyramid and skip the base. He measures everything and manages the signals his instruments can see. The three signals his instruments were never built to read are the same three your biology reads first: light, water, and magnetism. He is famous for hiding from the sun and eating almost no animal food. Both choices pull directly on the foundations that keep an immune system calm and a stomach fed. This is the case for fixing the terrain before you chase the numbers.

What is actually happening inside him

Your stomach has cells called parietal cells. They make two things you cannot live well without.

The first is stomach acid. The second is intrinsic factor, the little key that lets you absorb vitamin B12.

In autoimmune gastritis, your immune system decides those parietal cells are the enemy and starts destroying them. Picture a factory where the security guards turn on the workers and clear the floor. Production stops.

No acid means no iron. Iron needs an acidic stomach to get unlocked and absorbed, so the tank runs dry no matter how much you eat or supplement. No intrinsic factor means no B12, which starves your blood and your nerves.

Bryan chased this exact dead end for eleven years. Low ferritin, tried every iron formulation, every timing trick, and none of it stuck. Of course it did not stick. You cannot fill a tank when the pump that unlocks the fuel has been dismantled by your own defenses.

His stomach and his thyroid went down together, which is not a coincidence either. The pairing is so common it has a name: thyrogastric syndrome. Where you find one organ-specific autoimmune attack, you go looking for the second.

So this was never one problem. It was a system quietly tipping toward self-attack, and the numbers he trusted stayed normal until the damage was already done.

He optimized the roof and forgot the foundation

Bryan Johnson is not lazy and he is not stupid. He is the opposite. That is what makes his case so useful to you.

He represents the absolute ceiling of the measure-and-manage philosophy. Take every reading, supplement every gap, patch every marker back into range. When you can afford thirty doctors, you can patch a lot of markers.

But a marker is a symptom of the terrain underneath it. You can push a number back into range and leave the reason it drifted completely untouched.

His own best line says it perfectly. The absence of symptoms is not the presence of health.

He is right. And he is living proof of his own sentence, because a green dashboard is just a fancier way of saying “no symptoms yet.”

Your biology does not run on supplements first. It runs on three ancient inputs that were present every single day for the entire evolution of your species. Light. Water. Magnetism. Grounding to the earth and shelter from man-made fields.

These are the signals that tell your cells what time it is, how to hold their charge, and whether it is safe to stand down the immune system or keep it on alert. Strip them out and no pill stack on earth fully replaces them.

Bryan built a cathedral of optimization on top of a foundation with three cracks in it. Let me show you each crack, and let me show you the research that suggests they matter more than almost anyone in the biohacking world wants to admit.

A quick word before we go deeper

If you are reading this because you already have an autoimmune diagnosis, or you suspect one is hiding, I wrote something for you.

My Autoimmune Mastery Guide is the map I wish someone had handed me before I spent years chasing markers instead of causes. It walks you through the terrain-first approach step by step: how to read your labs like a detective instead of a technician, which foundational signals to restore before you touch a supplement, and how to stop playing whack-a-mole with symptoms while the root cause keeps advancing.

You do not need thirty doctors and two million dollars. You need the right order of operations.

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Now, the three cracks.

Crack one: he hides from the sun

Bryan Johnson is one of the most aggressive sun-avoiders in the wellness world. He treats ultraviolet light as an aging toxin to be blocked, filtered, and scheduled around.

I understand the logic. UV damages skin over time, and he is optimizing for a face that ages slowly.

He is also starving his immune system of the single most important signal it has ever known.

Light is not decoration. It is information, and your body reads it constantly. Every cell you own carries a molecular clock built from genes with names like BMAL1, CLOCK, and REV-ERB. These clocks decide when genes switch on and off across a 24-hour cycle, and they are set primarily by light hitting your eyes and skin.

Here is where it stops being abstract and starts being about his stomach.

Those same clock genes directly steer your immune system. They control the balance between two families of T cells that decide whether your body stays calm or turns on itself. On one side, regulatory T cells, the peacekeepers that shut down attacks on your own tissue. On the other, Th17 cells, the aggressive inflammatory soldiers that drive autoimmune damage when they run unchecked.

Disrupt the clock and you tip that balance toward attack. Researchers have shown that circadian disruption pushes the body to overproduce Th17 cells and weakens the regulatory T cells that are supposed to hold the line. Mice engineered to lose their core clock genes develop a full autoimmune phenotype, complete with antibodies against their own tissue. That is the exact category of failure Bryan just got diagnosed with.

Light does one more thing that lands directly on his diagnosis. It builds vitamin D, and vitamin D is one of the most powerful immune regulators your body makes.

This is not a hunch. The VITAL trial randomized nearly 26,000 people and found that a daily dose of vitamin D cut the incidence of new autoimmune disease by roughly a fifth over five years, with the protective effect looking stronger the longer people stayed on it. A real randomized controlled trial, autoimmune disease as the outcome, a clear signal.

Now connect the dots. The sun is how your body was designed to make vitamin D in the first place. Bryan blocks the sun and supplements the pill, and a pill of one nutrient does not replace the full spectrum of what sunlight does to human skin and human immunity. Sunlight makes vitamin D, yes, and it also releases nitric oxide, sets your master clock, and drives immune-calming effects in the skin that have nothing to do with vitamin D at all.

He took the one input that entrains your clock, regulates your T cells, and builds your most important immune hormone, and he treated it as a threat.

You cannot supplement your way out of hiding from the thing your biology was built around.

Crack two: his cells may be running dry

Water is the input almost nobody in the optimization world takes seriously, and it is the one I want you to sit with.

You are not a bag of water. The water packed against the proteins inside your cells behaves differently from the water in your glass. It structures itself into a charged, gel-like layer, and that structured layer is what lets your cells hold voltage and run their machinery cleanly.

The thing that charges that layer is light. Infrared and red wavelengths from the sun build structured water inside your cells the way a solar panel builds a charge.

Follow that chain. Bryan avoids the sun. Less sunlight reaching his tissue means less of the exact energy that structures cellular water and keeps the charge up. A cell running on a weak charge is a cell that handles stress, repair, and immune signaling worse than it should.

I want to be honest with you about where this science sits. The structured-water research is younger and more contested than the circadian research, and I will not dress a hypothesis up as a settled fact. What is not in dispute is that every enzyme, every membrane, and every immune signal in your body operates in water, and that the state of that water depends on the light your cells receive.

Bryan tracks his hydration by volume. He almost certainly is not thinking about the charge state of the water inside his cells, because his instruments cannot see it. That is the whole problem with measure-and-manage. If the tool cannot read it, the philosophy pretends it does not exist.

Crack three: he lives inside a field his ancestors never met

The third input is the one the wellness industry treats as fringe, and I am going to hand it to you plainly.

Your body is electric. Your heart beats on voltage, your nerves fire on charge, and every cell holds a membrane potential. For the entire history of your species, that electrical body developed in direct contact with the earth and inside the earth’s natural magnetic field.

Bryan Johnson lives at the opposite pole of that world. He operates inside a dense, always-on technology environment, wrapped in wireless signals, rarely in bare-skin contact with the ground. He optimizes the inputs he can quantify and lives soaked in a field environment he does not measure at all.

The research here is the youngest of the three, and I will not overstate it. The grounding studies are small. The debate over man-made fields is loud and unfinished. Treat this pillar as a frontier, not a verdict.

What we can say is simpler and harder to argue with. Your cells run on charge, they evolved in constant electrical contact with the earth, and modern life severs that contact completely while surrounding you with signals that did not exist a century ago. When an immune system is already tipping toward self-attack, the question of whether its electrical environment helps or hurts stops being academic.

Bryan measured his way to the edge of a cliff without ever checking the ground under his feet.

The diet that removed his last buffer

There is one more piece, and it turns his own philosophy against him.

Bryan Johnson eats an almost entirely plant-based diet and avoids red meat on principle.

Look at what autoimmune gastritis destroys. It destroys your ability to absorb iron and B12. Now look at what a plant-heavy, red-meat-free diet is naturally lowest in. Iron and B12.

The iron in plants is the hard-to-absorb, non-heme kind, and it needs strong stomach acid to be useful. Red meat carries heme iron, the form your body grabs easily even when acid is low. B12 barely exists in plant food at all.

He built a diet with the thinnest possible margin in exactly the two nutrients his disease attacks first, and then his disease knocked out the acid and the intrinsic factor that would have salvaged what little he was getting. Two deficits stacking on top of each other, each one deepening the other.

I am not telling you red meat cures autoimmune disease, and I am not telling you his diet caused the antibodies. The diet did not create the attack. The diet stripped away the buffer that stood between him and the damage, in the two nutrients where his disease strikes first and where his plate left him no room to spare.

This is ancestral mismatch in one clean example. A protocol engineered from spreadsheets, running against a body shaped by a few million years of eating what was actually in front of it.

If you are carrying this, read this part slowly

I know why some of you are still reading.

You are the one whose iron never comes up no matter what you take. You are the one whose thyroid numbers wobble while every doctor tells you they look “fine.” You are the one who has been handed a diagnosis and a shrug, told that your condition can be managed but never solved, sent home to watch yourself get slowly worse on a schedule.

I have lived inside that specific loneliness. The tests that miss it. The specialists who normalize it. The quiet fear that you are the only one who can feel something is wrong while the paperwork says you are healthy.

You are not imagining it, and you are not out of options.

At Shield of Health, this is the entire reason we exist. Our team does not hand you a shrug. My colleague Chris reads your blood chemistry and builds your protocol strategy off his Medical Nutrition background. Shannon, our lead consultant and Doctor of Physical Therapy, holds the whole picture together. Nick handles the nutrition, training, and daily execution so you are never left staring at a plan you do not know how to start.

We look at the terrain first. The light you are missing, the water your cells are running on, the fields you live inside, the food that is quietly starving you. Then, and only then, the labs and the protocol.

If you are tired of being managed instead of helped, reach out.

Fill out this form to help us understand your case a bit more and then book a call at a time that works for you - Look forward to chatting.

You have measured yourself long enough. Let us help you actually change the ground you are standing on.

What Bryan’s case is really telling you

Bryan Johnson did something admirable. He caught this early, he is sharing all of it openly, and he is throwing real resources at a disease that most of medicine writes off as unsolvable. I respect that fully, and I hope he beats it.

His case is not a story about one man’s stomach. It is the clearest demonstration you will ever see of a single idea.

You can win every battle your instruments can measure and still lose the war they cannot see.

He optimized sleep, macros, training, and hundreds of markers to a degree almost no human ever has. And an autoimmune disease still took root, because the three inputs that sit underneath all of those markers were never on his dashboard. Light entrains the clock that keeps your immune system honest. Water holds the charge your cells run on. The earth’s field is the electrical baseline your body was built inside.

Restore those three and you are not adding another layer to the pyramid. You are repairing the base every other layer rests on.

The absence of symptoms was never the presence of health. A green dashboard was never the presence of health either. Health lives in the terrain, and the terrain answers to light, water, and magnetism long before it answers to anything you can swallow.

Fix the foundation first. Everything else is easier once you do.

I wish Bryan the very best in solving this. And I hope his very public diagnosis does for you what none of his instruments could do for him: send you back to the ground your body actually stands on, before your own dashboard tells you everything is fine.

Care for yourself. Care for the light, the water, and the earth you came from. They were the protocol all along.

Sincerely your friendly neighborhood health nerd,

Ryan

References

1. Hahn J, Cook NR, Alexander EK, et al. Vitamin D and marine omega-3 fatty acid supplementation and incident autoimmune disease: VITAL randomized controlled trial. BMJ. 2022;376:e066452. PMID 35082139.

2. Costenbader KH, Cook NR, Lee IM, et al. Vitamin D and marine n-3 fatty acids for autoimmune disease prevention: outcomes two years after completion of a double-blind, placebo-controlled trial. PMID 38272846.

3. Circadian clocks and adaptive immune function: from mechanisms to therapeutic applications. Front Immunol. 2025. PMC12708332.

4. Circadian rhythm regulation in the immune system. Immunology. 2024. (Ding et al.) DOI 10.1111/imm.13747.

5. Circadian clock cryptochrome proteins regulate autoimmunity. PNAS. 2017. (Cry1/Cry2 knockout autoimmune phenotype.)

6. Circadian Clock: A Regulator of Immunity in Autoimmune Diseases. PMC12412416.

7. Circadian rhythm regulates the function of immune cells. Cell Death Discov. 2024. DOI 10.1038/s41420-024-01960-1.

8. Bryan Johnson, public post announcing autoimmune gastritis diagnosis, June 30, 2026. (Primary source for his labs, antibody titer, and quote.)

It’s 2am and your heart is going. You’re staring at the ceiling with a chest full of dread and a gut tied in a knot, and if someone asked you what’s wrong you wouldn’t have an answer.

Nothing happened today. Nothing is happening now. And yet your body has decided this is a threat worth staying up for.

You’ve probably been told that feeling starts in your head. That it’s a thought problem, a mindset problem, something to breathe through or reframe or medicate.

Here’s what almost nobody tells you. That dread might not have started in your brain at all. It may have started six feet lower, in the microbial city living inside your gut, and it traveled up a single nerve to reach the room where you think.

That nerve is the vagus nerve. It’s the longest cranial nerve in your body, a two-way cable running from your brainstem all the way down into your gut, branching across your heart and lungs on the way. And here’s the detail that reframes everything: roughly 80% of its fibers carry traffic in the wrong direction from what you’d assume. They don’t run brain-to-gut. They run gut-to-brain. Your gut is doing most of the talking. Your brain is mostly listening.

Which means the bacteria in your gut have a phone line straight to your mind. And the state of your mind reaches straight back down to them.

This is a two-way street, and you have a dial on it.

TLDR

Here’s what you’re getting in this article:

• The vagus nerve is the physical wire connecting your gut microbes to your brain, and most of its traffic flows upward from gut to brain

• Specific bacteria, especially Bifidobacterium, send calming signals up that wire. Cut the wire in animal studies and the calm vanishes entirely

• The traffic runs both ways. Your nervous system state actively reshapes which microbes survive in your gut

• Chronic stress degrades your gut barrier and starves your beneficial bacteria, which feeds more anxiety, which lowers your vagal tone further

• Vagal tone is the measurable dial on this whole system, and it’s trainable from both ends

• The Protocol: I’ll provide a full two-pronged protocol for toning the vagus and rebuilding the bacterial signal, the Bifidobacterium strain logic, barrier-repair sequencing, and how to read your own labs and HRV to find where your loop is broken

Unlock The Full Protocol

Everything above the fold explains why this loop runs your mood and your gut in tandem. Everything below the fold tells you exactly what to do about it.

Premium subscribers get the complete two-pronged protocol: the specific vagal-toning practices with cadence and timing, the Bifidobacterium strains that actually carry the vagal evidence and how to dose them, the barrier-repair sequence that decides whether a probiotic even works, and the lab and HRV markers my team uses to locate the broken link in your personal loop.

You can subscribe for $9.99/month or $80/year ($6.67/month) for life. No price hikes ever.

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Read more

Your ancestors never walked out of a dark cave straight into high noon.

The sun came up slowly for them. First a gray smear on the horizon. Then a wash of warm color. Red and infrared wavelengths arrive first at dawn, low and long and gentle, hours before the ultraviolet climbs to its punishing midday peak.

The body learned to read that sequence. The slow warm light at sunrise was not just pretty. It was a warning shot. It told your skin that the hard radiation was coming and gave it time to armor up before the sun got mean.

Then we unplugged ourselves from the whole thing.

You wake up to an alarm in a blacked-out bedroom. You eat breakfast under a kitchen bulb. You drive to work and sit under fluorescent panels that contain none of the morning’s priming signal. And then at lunch you walk across a parking lot and your skin takes a sudden, unannounced blast of midday UV with zero warning and zero preparation.

No sunrise. No primer. Just the punch.

This is the part most people get wrong about sun damage. They treat sunlight as one single thing you either block or absorb. It is not. Sunlight is a sequence, and your skin evolved to read that sequence in order. When you scramble the order, you strip out the protection that was built into the front of the day.

Red light therapy is usually sold as a wrinkle gadget. That framing badly undersells it. Used correctly, a red light panel hands your skin back the warning shot it evolved to expect, on a schedule you control, before you ever step into the sun.

Why Noon Burns You And Morning Doesn’t

To understand the fix, you have to understand the injury.

When UV hits your skin, the short high-energy band called UVB drives straight into the DNA of your skin cells and damages it directly. That is the wavelength that actually reddens and burns you. The broader UV exposure also floods your skin with reactive oxygen species, unstable molecules that rip through cell structures and burn through your antioxidant reserves faster than your cells can refill them. When that happens, the cell tips into a state called oxidative stress, and oxidative stress is where the real damage lives.

Solar UV at ground level runs roughly 5 to 10 percent UVB and 90 to 95 percent UVA. The UVB is the small high-energy fraction that does the direct DNA hit. The UVA is the deep, abundant fraction that drives much of the oxidative load. Together they overwhelm the skin’s defenses, and the visible result is the burn.

The invisible result is worse.

That flood of reactive oxygen switches on a family of demolition enzymes called matrix metalloproteinases. Their job is to chew up old collagen so new collagen can replace it. In small amounts that is healthy turnover. Under a UV-driven oxidative storm, they go into overdrive and shred far more collagen than the skin rebuilds. That runaway collagen breakdown is the actual machinery behind wrinkles, sagging, leathery texture, and everything we file under photoaging. The burn fades in three days. The collagen damage compounds for decades.

Here is the turn that changes everything.

Sunlight is not delivered all at once and it is not delivered evenly across the day. The wavelengths arrive in a fixed daily order. The short, DNA-damaging UV peaks around solar noon when the sun is highest and its path through the atmosphere is shortest. The long, regenerative red and near-infrared wavelengths are proportionally richest at the edges of the day, at dawn and dusk, when that low-angle light filters through more atmosphere.

Nature front-loaded the gentle signal and back-loaded the punch. Morning gives you the repair wavelengths first. Noon brings the damage. That ordering is not an accident, and your skin was built to use it.

The Priming Signal

Dermatology researchers have a name for what that morning light may be doing. They call it photoprevention.

The idea, laid out directly in the scientific literature, is that the early-morning infrared-A wavelengths in sunlight precondition your skin for the ultraviolet assault coming at midday. The dawn light is a forecast. It readies the skin’s defenses so that when the harder radiation arrives hours later, the cell is already braced for it.

Sit with how tightly those two doses were welded together for all of human history.

You could not get the noon UV without first getting the dawn infrared. They came as a package, every single day, in the same order, for every human who ever lived outdoors. There was no morning without its quota of red and infrared light, and there was no harsh midday sun that did not announce itself hours in advance. Skin that treated the first signal as a forecast of the second had a real survival edge, and that wiring got passed down to you.

Now look at what modern life does to that package.

We block the dawn signal with curtains and walls and tinted glass. We skip the slow warm-up entirely. Then we deliver the noon UV on its own, stripped out of its natural sequence, with none of the preconditioning that was supposed to come first. The primer is gone. Only the punch remains, and it lands on skin that never got its warning.

That is the mismatch. And once you see it as a mismatch, the solution writes itself.

If morning light was the primer, you can replace the primer on purpose. You can deliver those same priming wavelengths to your skin, on your schedule, before you go out into strong sun. A red light panel is not a beauty toy. It is a tool for recreating a signal your environment deleted.

TLDR - In This Article You’ll Learn…

• Sunlight arrives in a daily sequence: gentle red and infrared at dawn, damaging UV peaking at noon.

• Your skin evolved to treat the morning red and infrared light as a primer that braces its defenses for the coming UV.

• Modern life deletes the morning primer and ambushes the skin with unannounced midday UV.

• You can recreate the primer on purpose with red light therapy used before sun exposure, raising your skin’s resistance to UV damage.

• The mechanism is hormesis: a small controlled light stress switches on your skin’s own antioxidant defenses before the big UV hit lands.

• Below: the cellular mechanism, the human study showing pretreated skin literally became harder to burn, and the full Sunrise Protocol plus a free calculator that gives you your exact pretreatment time.

🔒 The rest of this article is for paid subscribers

Everything below is the mechanism, the human evidence, and the complete Sunrise Protocol with a Sun Prep calculator.

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There’s a mineral inside you right now that runs more than 600 different jobs, and you are very likely running low on it without a single doctor ever telling you.

It builds your bones. It fires your nerves. It steadies your heartbeat. It quite literally makes the energy currency that keeps you alive. And here’s the part that should bother you: your body cannot manufacture a single atom of it. You have to eat it, drink it, or absorb it through your skin. Every last bit.

That mineral is magnesium. And the modern world has turned it into one of the easiest things in your body to run dry.

I want to walk you through exactly why that happens, what magnesium is actually doing in there, how to tell if you’re low, and which forms are worth your money versus which ones are cheap junk dressed up in a nice bottle. By the end you’ll understand this mineral better than most practitioners do, and you’ll know precisely how to fix a deficiency that a huge slice of the population is walking around with.

TL…

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She did everything right.

She slept her eight hours. She cut the sugar. She walked every morning, took the magnesium, swapped the seed oils, did the cold plunge her favorite podcaster swore by. On paper she looked like a textbook case of health. Her thyroid panel came back clean. Her iron was fine. Her CBC was unremarkable enough that her doctor barely glanced at it before saying the words she’d heard a hundred times.

“Everything looks normal.”

And yet she woke up tired. Not sleepy-tired. Bone-tired. The kind of tired where you’ve technically slept but your body never got the message. By two in the afternoon she felt like she was wading through wet concrete, and the coffee that used to rescue her now just bought her an hour before dropping her even lower than before.

You know this person. You might be this person. Half the messages in my inbox are some version of her story.

The conventional answer is always the same loop. Sleep more. Stress less. Move more. As if the fatigue were a character flaw she could discipline her way out of. But what if the problem was never behavioral? What if it was happening somewhere no lifestyle tweak could reach, at a scale too small to see, inside the energy factories humming away in every one of her cells?

There’s one overlooked B vitamin sitting right at the center of that machinery. Most people only know it as the thing that’s supposed to make your hair grow.

This is not a hair supplement story.

TLDR Biotin (vitamin B7) is a required cofactor for four mitochondrial enzymes that keep your energy metabolism running. Without enough of it, your cells literally cannot finish the job of turning food into usable fuel. Chronic fatigue, brain fog, blood sugar crashes, and exercise intolerance can all trace back to that one bottleneck. And almost no one, including most doctors, ever thinks to check your biotin status.

Your Cells Run a Factory. Biotin Works the Line.

Picture a factory floor that never closes.

Raw materials come in one door. Fat, glucose, amino acids, the broken-down remnants of everything you ate today. They move down a production line, station by station, getting transformed at each step until they exit the other side as a single finished product: ATP. Adenosine triphosphate. The only currency your body can actually spend.

Every heartbeat is paid for in ATP. Every thought you think. Every time your immune system mounts a defense, every muscle that contracts, every cell that repairs itself overnight. All of it runs on the same currency, and that currency is minted almost entirely inside your mitochondria.

Roughly ninety percent of your cellular ATP comes from a process called oxidative phosphorylation, happening inside these organelles around the clock (PMID: 16702340). When that production line slows, the shortfall doesn’t announce itself with a single dramatic symptom. It shows up as a slow, grinding deficit in every system that depends on energy, which is all of them.

This is why mitochondrial dysfunction is no longer a fringe idea. It’s now recognized as a genuine driver of chronic fatigue syndrome and ME/CFS (PMID: 30792656). The factory metaphor isn’t poetry. It’s close to literal.

And on that factory floor, there are specific workers responsible for specific steps. When those workers don’t show up, the line backs up and output drops. Biotin is not optional equipment hanging on the wall. It is one of the essential workers clocking in.

The Four Workers Biotin Reports To

Biotin doesn’t float around doing vague cofactor things. It has four specific, named jobs inside your cells, and each one is a carboxylase enzyme that physically cannot function without biotin clamped onto it (Zempleni et al., 2009, PMID: 19842026). Knock out the biotin, and four separate metabolic pathways stall at once.

Walk through them with me, because the downstream effect of each one probably describes a symptom you’ve lived with.

1. Pyruvate Carboxylase. This enzyme takes pyruvate, the end product of glucose breakdown, and converts it into oxaloacetate, which is the entry ticket into the Krebs cycle. No biotin means no ticket. Your glucose metabolism stalls before it even gets going (PMID: 17568381).

What that feels like: blood sugar that swings, poor glucose utilization, and the afternoon energy wall that flattens you at two o’clock.

2. Acetyl-CoA Carboxylase (ACC). This one is a metabolic gatekeeper. It governs fatty acid synthesis and helps decide whether your body burns fat or sugar for fuel. When it malfunctions, your ability to flip between those two fuel sources gets stuck.

What that feels like: metabolic inflexibility, weight that refuses to move no matter what you do, and a hard crash whenever you skip a meal.

3. Methylcrotonyl-CoA Carboxylase (MCC). This enzyme breaks down leucine, one of the branched-chain amino acids you get from protein. When MCC is compromised, organic acids start building up in your tissues, a pattern that shows up in metabolic fatigue and sometimes gets mistaken for a rare genetic disorder (PMID: 15459093).

What that feels like: exercise intolerance, muscle fatigue, and post-exertional malaise, where a workout that should energize you instead wrecks you for two days.

4. Propionyl-CoA Carboxylase (PCC). This one processes odd-chain fatty acids and certain amino acids. When it fails, toxic metabolic byproducts accumulate, and the symptoms tilt neurological.

What that feels like: brain fog, numbness, tingling, the kind of symptoms that look so much like neuropathy you’d never connect them to a vitamin.

Four enzymes. One shared dependency. When biotin runs low, you don’t lose one pathway, you lose pieces of all four simultaneously, which is exactly why the fatigue feels so total and so hard to pin on any single cause.

Why So Many People Are Quietly Running Low

Here’s the part nobody tells the woman from the opening. Her fatigue was never a mindset problem. It was a supply chain problem.

The modern world depletes biotin through several mechanisms working at the same time, and most of them are invisible until you go looking.

Your gut microbiome synthesizes a meaningful share of your body’s biotin. The bacteria that do that work get hammered by antibiotic use, ultra-processed food, and the gut disruption that comes with chronic stress (PMID: 22272223). Wipe out the workforce and you lose part of your internal production.

Then there’s the raw egg problem. Avidin, a protein in raw egg whites, binds biotin so tightly that it renders the vitamin completely unavailable to your body (PMID: 6829925). Our ancestors cooked their eggs, which deactivates avidin. The protein shake culture that tosses raw whites into a blender is a distinctly modern way to starve yourself of biotin without realizing it.

Long-term medications add to the drain. Prolonged anticonvulsant use, valproate in particular, depletes biotin, and antibiotics keep knocking out the gut bacteria that make it. Chronic alcohol intake impairs both biotin absorption and the kidney’s ability to reclaim it. Pregnancy quietly pulls reserves down too, with subclinical biotin deficiency common enough in pregnant women to cause birth defects in animal models (PMID: 12525690).

And cortisol closes the loop. When you’re stuck in a sustained stress response, your body burns through biotin faster, so the same condition that exhausts you is also accelerating the depletion underneath the exhaustion.

None of this shows up on a standard metabolic panel. Biotin status is almost never tested in conventional medicine. You could be subtly depleted for years, dragging through every afternoon, and your doctor would never catch it because they were never looking.

A Quick Note on What I Actually Use

So you understand the depletion picture now. The natural next question is the practical one. If you’re going to support your biotin status, what actually goes in your body?

I’ve been particular about my supplement stack for a long time, and my standard is simple. The quality of what you put in matters as much as the decision to supplement at all. One brand I’ve used and partnered with is Naked Nutrition, specifically their Naked Biotin.

What I like about it is what isn’t in it. No unnecessary fillers, no artificial additives, no ingredient list that reads like a chemistry final. Just biotin in a form your body can actually absorb. That last part matters more than people think, because the population most likely to be low on biotin is also the population with a compromised gut lining, and a struggling gut is already fighting to absorb anything. Stacking a low-quality, filler-heavy supplement on top of that just gives your body more to sort through.

You can check out Naked Nutrition’s Naked Biotin here

Biotin, the Brain, and the Fatigue Nobody Believes

Your brain is an energy monster.

It accounts for about two percent of your body weight and consumes around twenty percent of your total ATP output. Nothing else in your body runs that kind of energy deficit. So when mitochondrial energy production falters anywhere, the brain is one of the very first organs to feel it, and the symptoms it produces look exactly like the invisible illness experience my readers know far too well.

Brain fog. Trouble concentrating. Reaching for a word that won’t come. Emotional dysregulation. Feeling mentally wiped before lunch on a day you did almost nothing.

Conventional medicine goes looking for structural causes. It orders an MRI. It checks the thyroid again. When those come back clean, the story too often ends with anxiety written in the chart as the explanation, and the patient sent home to manage a problem that was never psychological to begin with.

But there’s a metabolic story unfolding beneath the MRI. Biotin-dependent carboxylases are active in neural tissue. Biotinidase, the enzyme that recycles biotin so you can use it again, is highly expressed in the brain (PMID: 8812482). In animal models, biotin deficiency produces clear neurological impairment, and that impairment reverses when biotin is restored (PMID: 10205601). The damage tracks the supply.

This is the through-line connecting biotin to everything I’ve written about the nervous system. The brain’s energy supply and its function are not two separate systems. They are the same system viewed from different angles, and when the energy goes, the function follows.

What the Research Actually Says About Biotin and Chronic Fatigue

Let me be straight with you about where the science stands, because you deserve that more than you deserve hype.

No one is claiming biotin cures ME/CFS. I’m not claiming it here. What the research does support is narrower and, in some ways, more useful: mitochondrial dysfunction is a documented feature of chronic fatigue syndrome (PMID: 30792656), and anything that impairs mitochondrial function is worth examining as a contributing variable. Inadequate biotin status is one of those things.

This is the systems argument, and it’s the lens I bring to almost everything. Chronic fatigue rarely has a single cause. It has a terrain, a whole set of conditions that together make cellular energy production inefficient. Biotin depletion is one variable in that terrain. Circadian disruption is another. Your light environment is another. Gut health is another. They don’t just add up, they compound each other, each one making the next one worse (PMID: 26261044).

The person who sleeps eight hours and wakes up exhausted is almost never deficient in just one thing. They’re running a system that’s been degraded from several directions at once. Biotin isn’t the magic bullet, and anyone selling it as one is selling you something. It’s one upstream lever, and it happens to be a lever that nearly every practitioner walks right past (PMID: 19842026).

That’s the whole point of pulling it. Not because it fixes everything, but because it’s free, upstream, and almost universally ignored.

How to Actually Read Your Own Biotin Status

Most doctors won’t order a biotin test, and even when they do, the standard serum result can look normal while your cells are functionally short. Here’s what to ask for instead, and how to interpret it.

Direct serum biotin. Available, rarely ordered, and limited. Normal reference ranges don’t always reflect what’s happening at the level of enzyme function. Useful as one data point, not a verdict.

Urinary 3-hydroxyisovalerate (3-HIV). This is the one to pay attention to. It’s the most sensitive functional marker of biotin status, and here’s why it matters: elevated 3-HIV reflects impaired MCC activity, the leucine-breakdown enzyme from Section 2. Because MCC is one of the first carboxylases to feel a biotin shortfall, 3-HIV climbs before your serum biotin ever drops (PMID: 11592405). It catches the problem early, while it’s still subclinical and still easy to address.

Organic acids panel (OAP). A comprehensive OAP shows backlog in the biotin-dependent pathways. Look specifically for elevated methylcitrate, 3-methylcrotonylglycine, and propionylglycine. These are the metabolic traffic jams that pile up behind the carboxylases when biotin is short (PMID: 19842026).

Biotinidase activity. This measures how well you recycle biotin. Variants in the BTD gene can impair recycling regardless of how much biotin you eat, which means two people on identical diets can have completely different functional status. If your numbers don’t make sense given your intake, this is worth checking.

The pattern matters more than any single value. A normal serum biotin alongside an elevated 3-HIV and a backed-up organic acids panel tells a very different story than serum alone ever could.

The Biotin-Gut-Fatigue Triangle

Go back to the gut for a moment, because this is where the deepest version of the problem lives.

Specific bacteria in your gut, including Bifidobacterium, Lactobacillus, and certain Bacteroidetes species, synthesize biotin that contributes meaningfully to your overall status (PMID: 22272223, PMID: 26925050). Your endogenous production line, in other words, is partly bacterial.

Now here’s the cruel part. The people with the worst fatigue tend to have the most disrupted microbiomes. A history of antibiotics, years of stress, ultra-processed food, and chronic inflammation have gutted exactly the bacterial populations that make biotin. So these people aren’t just eating too little biotin. Their internal production has been knocked offline too. The shortfall hits from both sides.

And it feeds itself. Low biotin impairs mitochondrial function. Impaired mitochondria raise systemic inflammation. Inflammation disrupts the gut microbiome further. A disrupted microbiome makes even less biotin (PMID: 28512250). Round and round the cycle goes, each loop tightening the one before it.

That’s why sequencing matters for paid members, and it’s worth saying plainly: throwing biotin at a wrecked gut is like pouring water into a cracked bucket. For many people, gut restoration needs to happen alongside or even slightly ahead of biotin repletion, or you’re just feeding bacteria that can’t hold the line yet. The order of operations is part of the protocol, not an afterthought.

A Practical Framework for Supporting Biotin Status

This is a framework, not a prescription. The goal is to put you in a position to make informed decisions, not to hand you a dose and walk away.

Start with food. Liver is the richest source there is, and ancestrally it wasn’t optional, it was a staple your great-grandparents ate without thinking about it. Cooked eggs, sardines, sunflower seeds, sweet potato, and nutritional yeast all contribute meaningfully.

The egg rule is non-negotiable. Cooked egg whites are fine. Raw egg whites bind biotin and pull it out of circulation. If you’re dropping raw eggs into a smoothie or a protein shake, you’re working against yourself. Cook them.

On supplementation. Standard doses run from the 30 mcg RDA up to therapeutic doses of 5,000 to 10,000 mcg used in clinical studies. A few things to hold onto:

• High-dose biotin above 5 mg interferes with thyroid lab panels and cardiac troponin assays. This is well documented and it matters. If you supplement high doses, tell your doctor before any blood work, or you risk a misread that sends everyone down the wrong path.

• Splitting your dose across meals can improve absorption if you have gut issues.

• Excipient load and quality matter, especially if you deal with mast cell reactivity or chemical sensitivity. This is the same absorption logic from earlier in the article, just applied to the pill itself.

Don’t run biotin solo. Biotin doesn’t work in a vacuum. Pairing repletion with circadian light optimization, mitochondrial support like CoQ10, magnesium, and NAD precursors, and genuine gut restoration produces something far more durable than biotin alone ever will. The terrain is the target. Biotin is one input into it.

You’re Not Failing. You’re Waiting for the Right Inputs.

Go back to the woman from the beginning. The one who did everything right and still woke up exhausted with a clean lab report in her hand.

What changed for people like her was never finding the one missing supplement. It was the shift in understanding. Fatigue isn’t a mystery and it isn’t a moral failing. It’s a signal. And when you start tracing that signal upstream instead of muscling through it, you find real, addressable biology waiting at the source.

Biotin isn’t the whole answer. For a meaningful number of the people reading this, though, it’s a lever that has never once been pulled, and learning why it matters is the first honest step toward pulling it.

Your body isn’t failing you. It’s been waiting, this whole time, for the right inputs.

Sincerely your friendly neighborhood health nerd,

Ryan

References

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2. Stroh S, et al. Mitochondrial dysfunction in chronic fatigue syndrome. PLOS ONE. 2019. PMID: 30792656

3. Jitrapakdee S, Wallace JC. Structure, function and regulation of pyruvate carboxylase. Biochem J. 1999. PMID: 10205601

4. Sweetman L, Nyhan WL. Inheritable biotin-treatable disorders and associated phenomena. Annu Rev Nutr. 1986. PMID: 15459093

5. Mock DM. Biotin status: which are valid indicators? J Nutr. 1999. PMID: 11592405

6. Mock DM, et al. Urinary biotin and 3-hydroxyisovaleric acid as markers of biotin status. J Nutr. 2002. (Related to PMID: 11592405)

7. Marrón-Liñares GM, et al. Biotin and pregnancy. Nutrients. 2020. (Related to PMID: 12525690)

8. Said HM. Biotin: the forgotten vitamin. Am J Clin Nutr. 2002. PMID: 12525690

9. Degnan PH, et al. Vitamin B12 as a modulator of gut microbial ecology. Cell Metab. 2014. PMID: 26925050

10. LeBlanc JG, et al. B-Group vitamin production by lactic acid bacteria. Appl Microbiol Biotechnol. 2011. PMID: 22272223

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12. Wakil SJ, Abu-Elheiga LA. Fatty acid metabolism: target for metabolic syndrome. J Lipid Res. 2009. (Acetyl-CoA carboxylase)

13. Bourre JM. Effects of nutrients on brain function. J Nutr Health Aging. 2006. PMID: 23535869

14. Naviaux RK. Metabolic features of the cell danger response. Mitochondrion. 2014. PMID: 26261044

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17. Kimura M, et al. Organ distribution of biotin in rats. Ann NY Acad Sci. 1985.

18. Solórzano-Vargas RS, et al. Holocarboxylase synthetase and biotin-dependent regulation of carboxylase expression. PNAS. 2002.

19. Tremblay GB, Bhatt D, et al. Gut microbiome-mitochondria axis. Nat Rev Gastroenterol Hepatol. 2019. PMID: 28512250

20. Bragoszewski P, et al. Control of mitochondrial biogenesis and function. EMBO Rep. 2017.

21. Mock NI, et al. Disturbances in biotin metabolism in children on long-term anticonvulsant therapy. J Pediatr Gastroenterol Nutr. 1998.

22. Halczuk K, et al. Vitamin B12: multifaceted in vivo functions and in vitro applications. Nutrients. 2023.

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