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Description
Some other medications can lead to low levels of vitamin B12 in your body
Intrinsic factor is only made in the stomach and after a gastrectomy there is little to no more of it or gastric acid, and the active mechanism in the body where B12 is absorbed is either less available or not available at all depending on if the surgery was a total or a part of a gastrectomy
It has been investigated in models related to muscles, the digestive system, blood vessels, and the nervous system
The math is less clean, but the injection volumes are very small, which some researchers prefer
