Nutrition Facts with Dr. Greger

Everything You Wanted to Know About B12 (Part 1)

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Including the symptoms of vitamin B12 deficiency
This episode features audio from:
How Long Does It Take to Become Vitamin B12-Deficient and What Are the Symptoms?
The Best Way to Test for Vitamin B12 Deficiency
The Best Source of Vitamin B12: Supplements, Shots, or Fortified Foods?
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