Bryan Johnson says his stomach is ‘eating itself’: What is AIG?

He then mapped his childhood and grownup food plan trajectory intimately. “As a child, I ate sugar cereal, drank sugary soda, and devoured down quick meals. I had a number of wholesome years in my early 20s, however then turned a younger father of three and started constructing a enterprise. Juggling that stress and grind, I let my well being slip and gained 40 lbs. Inside a number of years, I’d fallen right into a deep, persistent despair. Someplace in that timeline, my physique started creating an autoimmune process affecting my thyroid after which my abdomen lining. It’s referred to as Autoimmune Gastritis (AIG). My hypothyroidism bought recognized after I was 21 years previous with a routine blood draw. That enabled me to start proactive administration, supplementing levothyroxine and Armour Thyroid. They’re the hormones my physique must be producing by itself however wasn’t. By taking these drugs day by day, my physique was capable of function as if my thyroid was functioning correctly. What I didn’t know was that one thing else was happening inside my physique: my abdomen had begun attacking itself. However there was no routine check to seek out out, and I didn’t have any signs,” stated the 48-year-old.

Including that the prognosis got here in Might this 12 months, he continued: “I’m uncertain how lengthy I’ve had it. AIG causes irreversible injury: dietary deficiency, anemia, and over a protracted horizon, elevated most cancers threat. When AIG is found immediately, normal medical care concedes defeat, stating that nothing may be executed besides managing the situation, irrespective of how terrible or deadly the results. Wanting again over the previous few years, I can now see the early indicators we have been choosing up in measurement however hadn’t related the dots. For 11 years, I’ve had low ferritin, with out anemia. We frequently tried to lift my iron ranges with meals and supplementation however nothing would work. We chased the apparent options first. A plant-based food plan means all my iron is the hard-to-absorb, non-heme variety. Onerous coaching, sauna, and hyperbaric oxygen all increase the physique’s demand for iron. However none of them defined the core failure: regardless of me taking iron orally, trialing each formulation, and utilizing each timing trick, not one of the iron would stick.”

Dangerous information #1:

I’ve an autoimmune illness. My abdomen is consuming itself.

Dangerous information #2:

2–5% of individuals have this, too. Seemingly extra, as a result of it hides.

Excellent news:

I’m going to attempt to resolve it. Will share all.

As a child, I ate sugar cereal, drank sugary soda, and devoured down… pic.twitter.com/EbJ8a916uS

— Bryan Johnson (@bryan_johnson) June 30, 2026

To grasp higher, we requested consultants.

Dr Ruby Taparia, affiliate guide, rheumatology, KIMS Hospitals, Thane, defined that autoimmune gastritis is a situation the place the immune system mistakenly assaults the abdomen’s acid-producing cells. “The issue is that it normally develops quietly. Many individuals don’t present clear digestive symptoms to start with, so it typically goes unnoticed for years. In truth, the primary indicators would possibly seem exterior the abdomen, like ongoing fatigue, low iron ranges, vitamin B12 deficiency, or unexplained weak spot,” stated Dr Taparia.

Concurring, Dr Manjusha Agarwal, guide, inner drugs, Gleneagles Hospital Mumbai, stated over time, the situation damages the abdomen lining and reduces the manufacturing of abdomen acid and a protein referred to as intrinsic issue, which is important for absorbing vitamin B12. “If left untreated, it could result in vitamin B12 deficiency, anemia, and, in some instances, enhance the chance of stomach-related issues. The precise trigger just isn’t totally understood, however it’s linked to autoimmune ailments, the place the immune system assaults wholesome tissues. Folks with situations comparable to thyroid issues, sort 1 diabetes, or vitiligo might have the next threat of creating autoimmune gastritis. Signs typically develop slowly and will embrace tiredness, weak spot, pale pores and skin, stomach discomfort, bloating, nausea, lack of urge for food, indigestion, numbness or tingling within the arms and toes resulting from vitamin B12 deficiency, and problem concentrating,” the knowledgeable instructed indianexpress.com.

Is there a hyperlink between autoimmune thyroid illness and autoimmune gastritis?

Sure, affirmed Dr Taparia, elucidating that autoimmune ailments typically happen collectively. “Folks with one autoimmune situation, particularly autoimmune thyroid issues, have a better probability of creating one other autoimmune illness, together with autoimmune gastritis. This connection is so well-known that it’s typically referred to as ‘thyrogastric syndrome’. Subsequently, when somebody with autoimmune thyroid illness has unexplained dietary deficiencies, it ought to encourage medical doctors to look additional than the apparent,” stated Dr Taparia.

Right here’s what it’s best to contemplate (Photograph: AI Generated)

Why shouldn’t low ferritin ranges be ignored, even with out anaemia?

Ferritin reveals the physique’s iron shops. “An individual can have considerably low iron ranges whereas their haemoglobin stays regular. Ongoing low ferritin, particularly when it doesn’t enhance with food plan or dietary supplements, wants consideration. It might sign that one thing is disrupting iron absorption. Discovering the underlying trigger early can assist keep away from long-term points and dietary deficits,” stated Dr Taparia.

Prognosis normally entails blood exams to test vitamin B12 ranges, anemia, and autoimmune antibodies, together with an higher gastrointestinal endoscopy when wanted.

Can autoimmune gastritis be cured?

In accordance with Dr Taparia, at the moment, there isn’t a identified remedy for autoimmune gastritis. “The main focus is on early prognosis, monitoring for dietary deficiencies, changing lacking vitamins, and common check-ups for sufferers at greater threat of issues. Nevertheless, our understanding of autoimmunity is altering rapidly. Developments in precision drugs and immunology are resulting in new analysis, offering hope that future remedies might transcend managing signs and extra successfully goal the illness,” stated Dr Taparia.

Dr Agarwal stated that administration focuses on treating vitamin B12 deficiency by way of dietary supplements or injections, correcting iron deficiency if current, monitoring abdomen well being commonly, and managing related autoimmune situations. “A balanced food plan, common follow-up with an inner drugs specialist, and early prognosis can assist stop long-term issues and keep total well being,” stated Dr Agarwal.

What to notice?

Simply because there aren’t any signs doesn’t imply there isn’t a illness. “Ongoing fatigue, unexplained low iron ranges, or dietary deficiencies shouldn’t be dismissed as life-style points. Generally, small abnormalities are early indicators of an underlying autoimmune course of that wants immediate analysis,” stated Dr Taparia.

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DISCLAIMER: This text is predicated 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.