The following comparison is designed to help you understand three brain- and heart-healthy eating patterns: the Mediterranean Diet, the DASH Diet, and the MIND Diet.

Harvard Medical School researchers have consistently warned that the brain supplement market is fraught with problems. Dr. Pieter Cohen, a physician and associate professor at Harvard Medical School, identified a disturbing pattern: many over-the-counter brain supplements contain unlisted, unapproved pharmaceutical drugs that aren't legal in the United States.