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Description
Liquid B12s have become more and more effective at delivering Vitamin B12 to the body, but B12 shots are the most efficient way to prevent or treat a deficiency

B12 injections are typically administered intramuscularlyusually in the upper arm or thigh

The body's capacity to absorb B12 from food is naturally limited by intrinsic factor, a protein produced in the stomach that binds to B12 and facilitates its absorption in the small intestine

[DOI] [PubMed] [Google Scholar] 62.Xu J, et al
