Bryan Johnson just lately left social media shocked with the revelation that he has autoimmune gastritis, or the situation the place his abdomen is consuming itself. Now, following considerations and recommendation from social media, Johnson, in a put up on X, retorted, “For these of you suggesting that I eat meat and get solar to treatment my autoimmune gastritis, I used to be consuming meat and within the solar for hours a day when this autoimmune situation began. I continued to eat meat and was within the solar because it progressed. And to be clear, I do know you’re coming from place, and I respect your intent.”
In response to Johnson, who has been on a long life protocol, he’s had “low iron for 11 years”. “Sure, even once I ate meat, my ferritin was low and averaged 38 ng/mL. I’ve lastly boosted it again to wholesome ranges. The human physique is difficult, and the science is consistently evolving.”
DISCLAIMER: This text relies on info from the general public area and/or the consultants we spoke to. At all times seek the advice of your well being practitioner earlier than beginning any routine.
Notably, whereas his haemoglobin and haematocrit had been regular, ferritin, which displays saved iron, and haemoglobin, which displays circulating iron, had been low. “And since the physique drains its reserves first to maintain hemoglobin regular, you might be totally iron poor with a wonderfully regular hemoglobin and hematocrit,” he mentioned in an in depth put up on X.
He argued that that is the explanation why low ferritin saved getting “dismissed”. “The numbers that outline anaemia seemed positive, so nobody requested why my iron reserves wouldn’t refill. Throughout these 11 years, earlier than doing well being stuff and when on my longevity protocol, I sadly didn’t totally perceive how necessary iron was to my physique. Now, in every single place I look, I see iron enjoying a central position,” he admitted.
Nonetheless, throughout these 11 years, he tried every little thing to “repair it”, together with consuming meat and each sort of oral iron supplementation, utilizing each timing trick and each formulation. “Not one of the iron would stick, and we couldn’t work out why. I overhauled my medical group earlier this 12 months. With better capability, we revisited every little thing. Then we found my autoimmune gastritis (AIG). With AIG, my abdomen doesn’t make sufficient acid to soak up iron. The one route left was to bypass the intestine and ship it intravenously,” he added.
Right here’s what you need to know (Picture: Getty Photographs/Thinkstock)
He famous that most individuals deal with anaemia as the brink to look at. However lengthy earlier than hemoglobin drops, low iron starves the enzymes your cells rely upon: those your mitochondria use to make vitality, synthesise DNA, construct dopamine and different neurotransmitters, and energy immune protection. “That’s the reason you’ll be able to really feel fatigue, mind fog, and worse endurance even with regular hemoglobin and an in any other case “regular” iron panel,” he mentioned.
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He then acquired iron infusion therapies. “I ended up getting a 1000mg monoferric infusion.”
In response to him, monoferric is extra tolerable, permitting a better dose of as much as 1000 mg.
> an entire replenishment dose in a single infusion
> different IV irons require a number of infusions (3-5)
> head-to-head randomized trials present it causes hypophosphatemia in solely about 8% of sufferers in comparison with 74% with Injectafer
> its commonest unwanted side effects are delicate nausea and rash occurring in roughly 1% of sufferers
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> different choices, together with Iron dextran (INFeD), carry a black-box FDA warning for doubtlessly life-threatening allergic reactions and require a compulsory check dose earlier than every new remedy course
> it’s very costly. Your physician can write a letter to your insurance coverage firm to justify medical necessity.
Ferritin ranges put up infusion:
+ 205 ng/mL 2 weeks put up infusion
+ 195 ng/mL 4 weeks put up infusion
Our goal is 80 ng/mL.
We are going to proceed to watch. Ranges are anticipated to settle round 6-8 weeks post-infusion.
The teachings I’ve discovered:
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+ don’t mess with low iron
+ don’t settle for it as okay
+ it may very well be pointing to a extra significant issue
+ strive your most popular technique to appropriate: meat, dietary supplements, and so on.
+ and if it doesn’t appropriate, examine why, and think about an infusion
I had low iron for 11 years.
Sure, even once I ate meat, my ferritin was low and averaged 38 ng/mL.
I’ve lastly boosted it again to wholesome ranges. You possibly can see my protocol beneath.
On the floor, my low ferritin was simple to dismiss by most requirements of care. Most docs miss… pic.twitter.com/lgsvoiqbJk
— Bryan Johnson (@bryan_johnson) July 7, 2026
To grasp extra, we reached out to consultants.
Dr Shankar Zanwar, senior advisor gastroenterologist, Gleneagles Hospital, Mumbai, defined that autoimmune gastritis is a continual situation through which the physique’s immune system mistakenly assaults the abdomen’s parietal cells, that are accountable for producing abdomen acid and intrinsic issue wanted for vitamin B12 absorption.
“The precise trigger shouldn’t be totally understood, however it’s believed to outcome from a mixture of genetic predisposition and immune system dysfunction fairly than weight-reduction plan alone. That is why a person could proceed to develop autoimmune gastritis regardless of consuming a nutritious weight-reduction plan, consuming meat, or sustaining a wholesome life-style together with solar publicity,” described Dr Zanwar.
Concurring, Dr Pradeep Mahajan, regenerative medication researcher, Stemrx Hospital and Analysis Heart, reiterated that Bryan Johnson’s analysis reminds us that longevity is about lowering danger, not eliminating it from illness. “Autoimmune gastritis is when the immune system assaults the acid-producing cells of the abdomen, resulting in poor absorption of iron and vitamin B12. That is why one can eat quite a lot of meat and have low ferritin for years. It’s typically an absorption drawback, not an consumption drawback,” mirrored Dr Mahajan.
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One of many earliest indicators of autoimmune gastritis might be persistent iron deficiency or low ferritin ranges, even in individuals who commonly devour iron-rich meals resembling meat. “This occurs as a result of diminished abdomen acid impairs iron absorption lengthy earlier than vitamin B12 deficiency turns into obvious. Over time, untreated illness could result in anaemia, fatigue, weakness, nerve-related signs on account of vitamin B12 deficiency, and in some sufferers, an elevated danger of gastric polyps or abdomen most cancers,” mentioned Dr Zanwar.
In response to the consultants, folks with unexplained iron deficiency, persistent low vitamin B12, recurrent indigestion, or a household or private historical past of autoimmune issues ought to endure correct analysis fairly than self-medicating. “Early analysis by means of blood exams and endoscopy, adopted by applicable dietary substitute and common follow-up, helps stop long-term problems,” mentioned Dr Zanwar.
Notably, wholesome vitamin, train, daylight, and biomarker monitoring are good for wholesome ageing “however cannot all the time stop autoimmune ailments, that are decided by genetics and immune regulation”. “The way forward for precision medication could lie in a mixture of longevity, regenerative medication, and immune homeostasis to raised preserve long-term well being,” mentioned Dr Mahajan.
DISCLAIMER: This text relies on info from the general public area and/or the consultants we spoke to. At all times seek the advice of your well being practitioner earlier than beginning any routine.
