DiscoverNutritionFacts.org Video PodcastAre Large Weekly Doses of Vitamin B12 Safe?
Are Large Weekly Doses of Vitamin B12 Safe?

Are Large Weekly Doses of Vitamin B12 Safe?

Update: 2025-11-26
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Should we be concerned about getting too much B12?
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Are Large Weekly Doses of Vitamin B12 Safe?

Are Large Weekly Doses of Vitamin B12 Safe?

Michael Greger, M.D. FACLM