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You Need Vitamin B12 for a Sharp Brain as You Age - Yet 1 in 4 are Deficient in It

You Need Vitamin B12 for a Sharp Brain as You Age - Yet 1 in 4 are Deficient in It

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  • A lack of vitamin B12 may lead to cognitive problems and brain shrinkage

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This is an older article that may not reflect Dr. Mercola’s current view on this topic. Use our search engine to find Dr. Mercola’s latest position on any health topic.

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