Biohacker Bryan Johnson says health regimen limited impact of autoimmune gastritis
Tech entrepreneur Bryan Johnson told The Independent that his intensive health program helped keep his recently diagnosed autoimmune gastritis from becoming more severe.
Bryan Johnson, a 48-year-old technology entrepreneur known for his anti-aging experiments, said his recent diagnosis of autoimmune gastritis would have been far worse without the health measures he has followed for the past five years. In an email to The Independent, Johnson linked the stomach condition to an earlier diagnosis of autoimmune hypothyroidism at age 21, noting that the autoimmune issues have been present in his body for 27 years. He expressed gratitude for his focus on health, adding that it prevented a more serious outcome.
Johnson posted a photo on X showing an intravenous infusion of 1,000 mg of Monoferric, a treatment for iron-deficiency anemia, and wrote that he had struggled with low iron for 11 years. He attributed the deficiency to the gastritis, explaining that the condition reduces stomach acid needed for iron absorption.
He also responded to critics who have suggested his expensive, $2 million-a-year “Don’t Die” regimen is responsible for his health problems. Johnson defended his lifestyle, saying he aims to avoid common indulgences such as holiday overeating and that his choices are not an attack on any other person’s habits. He described his approach as agnostic toward others’ health practices.
Johnson dismissed various online suggestions that meat, sunlight, or dietary changes could cure his gastritis, calling them unlikely. He reiterated his commitment to monitor the condition and share any findings, noting that autoimmune gastritis is incurable, can increase cancer risk, and affects an estimated 0.5-2 percent of the U.S. population, according to the Cleveland Clinic.
Reflecting on his earlier diet, Johnson said he had consumed large amounts of sugary cereal, soda, and fast food before adopting his biohacking routine, which includes changes to diet, sleep, hyperbaric oxygen therapy, and other interventions. He described the autoimmune process as a genetic and immunological error that cannot be corrected by simple lifestyle tweaks.
"I'm agnostic to what you do and why you do it," Johnson wrote on X.
He concluded by stating his goal is to extend human lifespan far beyond current limits and invited others to join his efforts.