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And to feel the full effect, your body must first have a B12 deficiency
[16] [121] Upon leaving the stomach the hydrochloric acid of the chyme is neutralized in the duodenum by bicarbonate, [122] and pancreatic proteases release the vitamin from HC, making it available to be bound by IF, which is a protein secreted by gastric parietal cells in response to the presence of food in the stomach
Each vial is sterile, non-pyrogenic, and sealed for integrity at the time of shipment
But you can also use B12 shots for cold and flu symptom relief
2004 Mar;22(2):124
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