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In terms of metabolism, vitamin B12 acts as a cofactor for two key enzymes: methionine synthase and methylmalonyl-CoA mutase
State-level policies can influence how suppliers enforce access requirements
Despite its importance, B12 deficiency is remarkably common particularly among vegetarians, older adults, individuals with digestive conditions, and anyone whose body has difficulty absorbing this vitamin from food or oral supplements
Jun 2021;13(6):e15998
If you accidentally freeze it, discard it
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