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Description
This can be due to weakening of the stomach lining, or to medications that reduce stomach acid

This approach can quickly restore B12 levels, allowing you to feel more energetic, alert, and focusedoften within days to weeks of starting treatment
But I have come across similar reports describing something similar to a 48 hour half-life

That honesty is central to how we use it

Clinical Therapeutics ;25(12):312434

Gas and air mix contains nitrous dioxide and this gas inactivates B12 in the body
