A member asked:

What are the side effects of too much b-12, should i be taking a supplement if i'm not deficient?

A doctor has provided 1 answer
Dr. Martin Fried answered

Specializes in Nutrition

No: In rare cases, excess B12 supplementation may cause some numbness or tingling in the arm, hands and face. You shouldn't take the vitamin if you don't have a specific dietary deficiency.

Answered 4/20/2015

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