A member asked:

Which form of b12 is best: methylcobalamin, cyanocobalamin and hydroxycobalamin?

A doctor has provided 1 answer
Dr. Alan Ali answered

Specializes in Psychiatry

Cobalamin: Cyano c. is inactive form. Hydroxy c. is natural form. Methyl c. is an active form. Adenosyl c. is also an active form of c. but unlike the others, it is not available by injection.

Answered 4/16/2015

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