For ten years Claire Lynch took heartburn pills prescribed for her stomach pain, headaches and low energy.
She was told she had chronic gastritis and various other digestive problems, yet despite seeing five gastroenterologists over that time, her symptoms never improved.
And with good reason. It turns out that Claire actually has autoimmune gastritis – the same condition as the US bio-hacker and longevity influencer, Bryan Johnson.
It affects around 500,000 people in the UK and occurs when the immune system attacks the stomach lining, which reduces the levels of stomach acid, in turn often leading to vitamin B12 and iron deficiencies.
It can
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