The DASH Diet is a flexible and balanced eating plan developed by the National Heart, Lung and Blood Institute to reduce blood pressure and heart disease risk, according to U.S. News. While designed for cardiovascular health, its structure aligns with the nutrients identified as protective for cognitive function.
DASH emphasizes fruits, vegetables, whole grains, lean proteins, nuts, and low-fat dairy while limiting added sugars, sodium, and processed foods. This composition increases intake of antioxidants that counter inflammation and oxidative stress. It boosts fiber and B vitamins that support steady energy and help regulate homocysteine. Whole grains such as oatmeal and quinoa provide glucose, the brain’s primary fuel, without sharp spikes that can disrupt concentration.
Healthy fats can be incorporated through nuts, seeds, and oils, delivering vitamin E and monounsaturated fats linked in the source to better memory and lower cognitive impairment risk. Fatty fish provide omega-3 fatty acids that support memory and may slow age-related decline.
The plan also discourages sugar-sweetened beverages and ultraprocessed snacks, both associated in the source with higher risks of dementia, depression, inflammation, and oxidative stress. Replacing these with water, seltzer, coffee, or tea supports both metabolic and neurological health.
