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Because the injection bypasses your digestive system, your body can access the B12 quickly instead of waiting for absorption from food
Pei H, Yao Y, Yang Y, Liao K, Wu JR
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Most reconstituted peptides maintain their potency for 21-30 days when stored within this range
By improving fat metabolism, these injections help you burn fat instead of storing it
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
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