can b12 injections make you feel sick Top Signs May Have a Vitamin Deficiency (And When to Get a B12 Injection) What Does a B12 Shot

Such procedures decrease the number of cells in your stomach needed to secrete stomach acid and absorb vitamin B12

[DOI] [PubMed] [Google Scholar] 37.Riederer M, Erwa W, Zimmermann R, Frank S, Zechner R

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doi: 10.1038/s41573-020-0075-7

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It is almost exclusively contained in animal products such as meat and dairy