"A healthy Mediterranean diet includes foods that are rich in fruit and vegetables, which has antioxidants, and in fish and oils, which include healthy fats." People with diabetes may have better brain function if they follow a Mediterranean diet rich in fruits, vegetables, legumes, whole grains, fish and healthy fats, a US study suggests. Mediterranean diets have long been linked to better heart and brain health as well as a lower risk of developing diabetes. But research to date hasn't offered a clear picture of whether any cognitive benefits of eating this way might differ for people wit...