A diagnosis of B12 deficiency should not be dismissed based solely on a single measurement of B12 levels in the blood.

The Best Way to Test for Vitamin B12 Deficiency

Michael Greger, M.D. FACLM, founder of NutritionFacts.org and New York Times best-selling author of How Not to Die, How Not to Diet, and the just-released How Not to Age, brings you the latest in evidence-based nutrition research, delivered in easy to understand video segments. NutritionFacts.org is a non-profit and non-commercial public health organization, and more than 2,000 videos on virtually every aspect of healthy eating are available on our website. New videos and blogs are uploaded every day–always without any sponsors, ads, brand partnerships, or paid subscriptions.

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The Best Way to Test for Vitamin B12 Deficiency

The Best Way to Test for Vitamin B12 Deficiency

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