Brian Johnson just lately shocked social media by revealing that he suffers from autoimmune gastritis, a situation during which the abdomen eats itself. Now, following considerations and recommendation from social media, Johnson wrote in a put up to X, “To those that suggest consuming meat and getting solar to remedy autoimmune gastritis: When this autoimmune illness began, I used to be consuming meat and getting solar for hours a day. As my signs progressed, I continued to eat meat and get solar. And let me be clear: I do know you are coming from a great place and I respect your intentions.”
Johnson, who follows the Longevity Protocol, says he was “iron poor for 11 years.” “Sure, although I ate meat, my ferritin remained low, averaging 38 ng/mL. I’ve lastly recovered to wholesome ranges. The human physique is advanced and science is consistently evolving.”
Disclaimer: This text relies on data from the general public area and/or from consultants we spoke to. You should definitely seek the advice of your physician earlier than beginning your every day life.
Of notice, his hemoglobin and hematocrit have been regular, however his ferritin, which displays saved iron, and hemoglobin, which displays circulating iron, have been low. “And because the physique first drains shops to maintain hemoglobin regular, you may change into utterly iron poor even with utterly regular hemoglobin and hematocrit,” he stated in an in depth put up on X.
This, he argued, is why low ferritin continues to be “dismissed.” “The numbers that outline anemia appeared wonderful, so nobody requested me why my iron shops weren’t being replenished. Earlier than I began engaged on my well being or after I was following the longevity protocol for the final 11 years, I sadly did not absolutely perceive how vital iron was to my physique. Now, I see it enjoying a central position in every single place I look,” he admitted.
Nonetheless, throughout these 11 years, he tried every part to “repair the issue,” together with consuming meat and taking all kinds of oral iron capsules. replenishmentUtilizing each timing trick and each concoction. “Not one of the iron would stick and we did not know why. I overhauled my medical group earlier this yr. We ramped up capability and re-examined every part. Then they found autoimmune gastritis (AIG). With AIG, my abdomen would not produce sufficient acid to soak up iron. The one route left was to bypass the intestines and provides the iron intravenously,” he added.
Here is what it is advisable to know (Photograph: Getty Photos/Thinkstock)
He identified that most individuals deal with anemia as a criterion to be cautious of. However lengthy earlier than hemoglobin decreases, iron deficiency depletes the enzymes that cells depend on, the enzymes that mitochondria use to generate power, synthesize DNA, construct dopamine and different neurotransmitters, and supply energy. immunity protection. “That is why even folks with regular hemoglobin and in any other case ‘regular’ iron panels expertise fatigue, mind fog, and decreased endurance,” he says.
Afterwards, I obtained iron infusion remedy. “Lastly, I obtained 1,000 mg of monoferric acid intravenously.”
He says it’s well-tolerated and excessive doses of as much as 1,000 mg are tolerated.
> Full replenishment quantity in a single injection
> Different IV irons require a number of infusions (3-5)
> A head-to-head randomized trial has proven that Injectafer causes hypophosphatemia in solely about 8% of sufferers and in 74% of sufferers.
> The most typical unwanted effects are gentle nausea and rash, occurring in roughly 1% of sufferers.
> Different choices, together with iron dextran (INFeD), have black-box FDA warnings for probably life-threatening allergic reactions and require obligatory check doses with every new remedy course
> Very costly. Your physician can write a letter to your insurance coverage firm to justify your medical necessity.
Ferritin stage after injection:
+ 2 weeks after 205 ng/mL injection
+ 4 weeks after 195 ng/mL injection
Our objective is 80 ng/mL.
We are going to proceed to watch the state of affairs. Ranges are anticipated to stabilize roughly 6 to eight weeks after injection.
Classes I discovered:
+Don’t use low temperature iron
+ Do not settle for it as OK
+ Might point out a extra major problem
+ Strive your favourite correction strategies, reminiscent of meat, dietary supplements, and so on.
+ And if it isn’t proper, examine the explanation and take into account IV
I used to be iron poor for 11 years.
Sure, even after consuming meat, my ferritin was low, averaging 38ng/mL.
I’ve lastly recovered to a wholesome stage. You’ll be able to see my protocol under.
On the floor, the drop in my ferritin ranges was simply ignored by most remedy requirements. Most docs miss… pic.twitter.com/lgsvoiqbJk
— Brian Johnson (@bryan_johnson) July 7, 2026
To know extra, we reached out to consultants.
Dr Shankar Zanwar, senior guide gastroenterologist at Gleneagles Hospital in Mumbai, defined that autoimmune gastritis is a persistent illness during which the physique’s immune system mistakenly assaults the wall cells of the abdomen. These cells are accountable for producing abdomen acid and intrinsic issue, that are crucial for the absorption of vitamin B12.
“The precise trigger just isn’t absolutely understood, however it’s regarded as on account of a mixture of genetic predisposition and immune system dysfunction, not simply eating regimen. That is why people proceed to develop autoimmune gastritis regardless of sustaining a wholesome life-style that features a nutritious eating regimen, meat consumption, or solar publicity,” Dr. Zanwar defined.
Dr. Pradeep Mahajan, a regenerative drugs researcher at StemRex Hospital and Analysis Middle, agreed, reiterating that Brian Johnson’s analysis is a reminder that longevity is about decreasing danger, not eliminating illness. “Autoimmune gastritis is a situation during which the immune system assaults acid-producing cells within the abdomen, inflicting poor absorption of iron and vitamin B12. That is why ferritin might be low for years for those who eat quite a lot of meat. It is typically not a query of consumption, however absorption,” Dr. Mahajan recalled.
One of many early indicators of autoimmune gastritis could also be persistent iron deficiency or low ferritin ranges, even in individuals who commonly devour iron-rich meals reminiscent of meat. “This occurs as a result of iron absorption is impaired on account of decreased abdomen acid, lengthy earlier than vitamin B12 deficiency turns into obvious. If the illness goes untreated over time, it will possibly result in anemia, fatigue, and weak spotneurological-related signs on account of vitamin B12 deficiency, and an elevated danger of gastric polyps and abdomen most cancers in some sufferers,” Dr. Zanwar stated.
Consultants say folks with unexplained iron deficiency, persistent vitamin B12 deficiency, recurrent indigestion, or a household or private historical past of autoimmune illness ought to search acceptable analysis reasonably than self-medication. “Early analysis by blood assessments and endoscopy, adopted by correct vitamin and common follow-up, will help forestall long-term issues,” Dr. Zanwar stated.
Specifically, wholesome vitamin, train, daylight, and biomarker monitoring are efficient for wholesome getting older, however “don’t at all times forestall autoimmune illnesses, that are decided by genetics and immune regulation.” “The way forward for precision drugs might lie within the mixture of longevity, regenerative drugs, and immune homeostasis to higher preserve long-term well being,” stated Dr. Mahajan.
Disclaimer: This text relies on data from the general public area and/or from consultants we spoke to. You should definitely seek the advice of your physician earlier than beginning your every day life.

