Embrace meat-free meals

Brain-healthy eating encourages consuming meat sparingly (red meat makes an appearance fewer than four times a week in the ideal MIND diet). Beans, lentils and soybeans, which pack protein and fiber, make a worthy substitute. They'll keep you full and are rich in B vitamins, which are important for brain health.

In one study analyzing the diets of older adults, those who had the lowest intakes of legumes had greater cognitive decline than those who ate more.