A lifestyle of healthy eating isn’t just good for your body; it’s also essential for good brain function. Some fad diets may warn against grains and carbohydrates, but it’s important to remember that grains are a source of protein, vitamin B2, and zinc.

Low-carbohydrate diet plans typically translate to a diet high in saturated fats (from butter or red meats, for example), which has been associated with increased risk for developing coronary heart disease. Some foods that are documented as heart-healthy foods like tomatoes, fruits, nuts, legumes and whole grain foods may be cut out of these diet plans. Besides promoting heart health, these foods have also been shown to be part of healthy diets that reduce the risk of Alzheimer’s disease (AD) and other dementias (1-5).
— Grain Foods Foundation