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Zhai X, Lin M, Zhang F, Hu Y, Xu X, Li Y, et al

Safety data in humans is limited, and therapy should only be considered under licensed medical supervision though research is still ongoing

In the stomach, hydrochloric acid and pepsin release B12 from food proteins

Biochemistry 2018, 57 (31), 46514662

B complex injections can slightly sting during the injection
