Many studies show the benefits of the Mediterranean diet around vegetables, fish, grains and olive oil for healthier hearts, longer lives, stronger bones along with a reduced risk for diabetes and high blood pressure. A new study adds a new benefit to the list: the Mediterranean diet lowers your risk for dementia. Research presented at the Alzheimer’s Association International conference found healthy older adults who followed the Mediterranean or the similar MIND diet lowered their risk of dementia by a third.