Tech entrepreneur Bryan Johnson who is famous for spending roughly $2 million a year on his ‘Project Blueprint’ anti-aging regimens has revealed that he has been diagnosed with autoimmune gastritis (AIG).
This illness is an incurable autoimmune condition that attacks the stomach lining and can lead to nutrient deficiencies, anaemia and an increased risk of stomach cancer.
The biohacker disclosed the diagnosis in a social media post, saying the condition was confirmed following a series of medical tests.
He revealed, ‘My stomach is eating itself, I’m unsure how long I’ve had it.’
The 48-year-old said he discovered the condition in May after undergoing extensive investigations to determine the cause of persistently low ferritin levels, a protein responsible for storing iron.
Johnson explained he had experienced unexplained low ferritin levels for more than a decade without developing anaemia.
Further testing revealed elevated anti-parietal cell antibodies, while a stomach biopsy confirmed the early stages of autoimmune gastritis.

Johnson said he had previously been diagnosed with hypothyroidism at the age of 21 and had managed the condition for nearly three decades.
Despite the diagnosis, Johnson said he intends to challenge conventional treatment approaches.
‘When AIG is discovered today, standard medical care concedes defeat, stating that nothing can be done except managing the condition, no matter how awful or lethal the effects.’
He said his medical team plans to closely monitor his iron levels and other biological markers while conducting further research into the disease.
‘There’s no approved cure for autoimmune gastritis today.’
Johnson added that he hopes advances in artificial intelligence, genomics and biotechnology could eventually lead to new treatment options.
‘In the age of AI, multiomics, and custom-built DNA, proteins, and cells, no condition should be presumed incurable simply because no one has yet tried to cure it with today’s stack.’
Autoimmune gastritis is known to occur more frequently in people with other autoimmune disorders, including thyroid disease.