More research is desperately needed to understand the effects of diet, including omega-3 fatty acids, on the brain.

BBC: Oily fish dementia boosts queried

Whole grains are more than just starch, containing up to 25% of other goodies, including protein, fiber, and added healthy omega-3's, along with a complex mixture of vitamins, minerals, and other micronutrients.

CNN: A family's guide to healthy food substitutes