finally, we should eat a 'brain-healthy' diet. this means we should avoid food. we should also stay away from food that is high in cholesterol. instead,we should eat nutritious foods such as green vegetables, fruit, fish, and nuts. food which are good for you will protect the brain from disease. certain foods, however, may actually improve brainpower. Research suggests that the nutrient 'choline'. which is found in foods such as liver, eggs, and red meat, helps the brain work better.