A member asked:

What is an actual 'healthy' range for b12? neurological symptoms going on for a little while and docs are stumped could b12 be related? what's optimal?

A doctor has provided 1 answer
Dr. Mark Brezinski answered

Specializes in Sports Medicine

MMA and Homocyteine: Patients with B12 deficiency can frequently have a normal B12 level. I had a patient on crutches with normal levels. In high suspect cases, I get MMA and homocysteine.

Answered 5/7/2016

1.3k views

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