The enhanced Mediterranean diet groups fared equally well, and both had better cognitive performance outcomes than the reduced-fat diet group.
The Mediterranean diet varies by country and region, so it has a range of definitions.
But in general, it’s high in vegetables, fruits, legumes, nuts, beans, cereals, grains, fish, and unsaturated fats such as olive oil. It usually includes a low intake of meat and dairy foods.
The Mediterranean diet has been linked to a healthier heart, which in turn boosts the brain’s function.