vitamin supplements

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TUESDAY Q & A: Vitamin B-12 deficiency more common with increasing age

DEAR MAYO CLINIC: I recently read that being deficient in vitamin B-12 is common. Should I take a supplement? I am 78 and in good health.…

Mayo Clinic News Network
January 4, 2013

Take Vitamin Supplements with Caution: Some May Actually Cause Harm

Mayo Clinic News Network
April 11, 2011

If You Choose to Take Vitamins as Supplements, Stick to the RDA

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