In recent years, there has actually been a lot of interest in this very question.
A healthy diet, of course, is a critical tool in warding off nearly all of the diseases of aging. Your body just functions better when you’re feeding it all those good nutrients it needs.
But three diets in particular have been shown to slow cognitive decline and reduce risk for Alzheimer’s disease: the Mediterranean, DASH and MIND diets. All three have a lot in common, with an emphasis on fresh fruits and vegetables as well as whole grains. The MIND diet, in fact, is partially based on the Mediterranean and DASH diets, with special focus on foods good for the brain.