A member asked:

How long does supplementation take to fix a b12 level of 159.8? what is the best form of b12 to take?

A doctor has provided 1 answer
Dr. Bernard Seif answered

Specializes in Clinical Psychology

Sublingual B12: Is much more bioavailable than oral b12. You get more in you system this way. It takes several months to raise your B12 level significantly w/out injections. Peace and good health.

Answered 6/24/2014

4.2k views

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