- Biohacker Bryan Johnson, who spends $2 million a year on health optimization, has been diagnosed with incurable autoimmune gastritis.
- The condition, affecting 2-5% of people, causes his stomach to attack itself, leading to nutritional deficiencies, anemia, and increased cancer risk.
- Johnson was unaware of the disease despite early signs like low ferritin; it is often asymptomatic, with symptoms including abdominal pain or weight loss.
- Diagnosis involved blood tests showing elevated antibodies and stomach biopsies revealing early weakening of the stomach lining.
- His autoimmune gastritis is linked to his prior hypothyroidism, as low iron and thyroid dysfunction exacerbate each other.
- While incurable, the condition can be managed with treatments like iron infusions, which Johnson received, and B12 injections.
- Johnson plans to monitor diagnostics like ferritin and B12 levels, perform repeat biopsies, and develop experimental interventions to manage the disease.