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Vitamin B12 transport from food to the body's cells a sophisticated, multistep pathway

Unlike other vitamins the body does not synthesize B12 on its own, on the contrary, it obtains the vitamin from animal sources such as red meat, fish, milk, and eggs

As soon as the effect of these substances wears off, the body begins to gradually return to its normal metabolic rate

[DOI] [PubMed] [Google Scholar] Boutron 2014 Boutron I, Altman DG, Hopewell S, VeraBadillo F, Tannock I, Ravaud P

Medications that may lower your B12 levels Believe it or not, the medications you take for other conditions might be robbing you of your B12