NutritionFacts.org Video Podcast

NutritionFacts.org Video Podcast


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How to Test for Functional Vitamin B12 Deficiency

August 31, 2020

Many doctors mistakenly rely on serum B12 levels in the blood to test for vitamin B12 deficiency.

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NutritionFacts.org Video Podcast
By Michael Greger, M.D. FACLM
NutritionFacts.org Video Podcast
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