9. Nuts
Nuts are high in polyphenols, which have been shown to reduce a person’s risk of developing dementia. Walnuts are a particularly smart pick. “They contain ALA omega-3 fatty acids, which are especially good for brain function,” says Avena.
One serving: A small handful (1.5 ounces) of nuts or 2 tablespoons of nut butter
Aim for: 5 per week
Try it: Blueberry-and-Mixed Nut Parfait
10. Olive oil
Dr. Bredesen says a low-carb diet that’s high in good fats like polyunsaturates and monounsaturates, including the ketogenic diet, can help support brain health. Olive oil is rich in monounsaturated fatty acids, which can help protect the brain through their anti-inflammatory and antioxidant properties.
One serving: 1 tablespoon
Aim for: Use it in place of other oils and butter, and splurge on the extra-virgin variety.
Try it: Carrot-Top Pesto