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"A healthy, well-balanced diet high in whole grains, lean protein and fruits and vegetables, and low in fat and sweets supports good brain health," says Green. It also helps keep your weight in check. Experts aren't sure why, but people with a lot of belly fat are at greater risk for developing memory impairment, Green adds. More specifically, eat plenty of dark leafy greens, blueberries, pomegranates and grapes. All are high in antioxidants, which protect brain cells. Also eat cold-water fish like salmon, sardines and mackerel twice a week. They deliver omega-3 fatty acids, including DHA, which experts think facilitates communication between brain cells.
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