Does the Mediterranean diet really reduce dementia risk?

Neither a modified Mediterranean diet nor a conventional diet is linked to a reduced risk of dementia, a new study suggests. The Mediterranean diet includes a high intake of vegetables, legumes, fruits, fish and healthy fats such as olive oil, and a low intake of dairy products, meats and saturated fatty acids. Conventional dietary recommendations would include following the US Department of Agriculture's dietary guidelines (https://www.dietaryguidelines.gov/).