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Why Your Body Needs Vitamin B12

Why Your Body Needs Vitamin B12 (2:33)

Brain fog and coordination problems can be symptoms of low vitamin B12 levels. Dr. Oz explains how a vitamin B12 deficiency impacts the body.

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About Vitamins

Our experts agree it’s best to get vitamins and other nutrients from your diet, not dietary supplements. But sometimes it makes sense to take a vitamin, especially if you're deficient in vitamin D, omega-3 fatty acids and certain minerals.

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Frances Largeman-Roth, RD

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Diet & Nutrition