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4 Vitamins That Strengthen Brain Power: Maintaining Your Mental Edge as You Age

Vitamin D activates and deactivates enzymes in the brain and the cerebrospinal fluid that are involved in neurotransmitter synthesis and nerve growth. In addition, animal and laboratory studies suggest vitamin D protects neurons and reduces inflammation. Very few foods in nature contain vitamin D. The flesh of fatty fish (such as salmon, tuna, and mackerel) and fish liver oils are among the best sources. Small amounts of vitamin D are found in beef liver, cheese, and egg yolks.

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