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Vitamin B12 injections deliver 100% bioavailable cobalamin directly into the bloodstream bypassing the stomach acids that destroy oral supplements
Does it have completed human trials behind it
WHO Model Formulary 2008
Both intramuscular injections and sublingual supplements have been shown to effectively correct vitamin B12 levels in these patients
B12 Intramuscular Dose Standards The standard dose of vitamin B12 via intramuscular injection is 1,000 mcg per 1 ml
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