Foods to boost brain function. Medically reviewed by Katherine Marengo LDN, R.D., specialty in nutrition, on Written by Lana Burgess..Nuts are excellent sources of protein and healthy fats, and one type of nut in particular might also improve memory. A study from UCLA linked higher walnut .The good news is that you can improve your chances of maintaining a healthy brain if you add “smart” foods and drinks to yourt. . Caffeine Can Make You .Get adequate omega fatty acids. Essential for good brain health, omega fatty acids, docosahexaenoic acid, or DHA, in particular, may help .Eating a healthy, balancedt that includes these everyday brain boosting foods may help to keep your memory, concentration and focus as sharp as can .Certain ingre.nts can boost memory function. Read the BBC Good Food guide to brain food and improve cognitive function throught, plus discover .Salmon, mackerel, tuna, and other fish are rich in heart healthy omega fatty acids, including docosahexaenoic acid DHA . “In the brain, DHA .Foods That Will Boost Brain Health and Keep Your Memory Sharp. They ve been shown to lower your risk for Alzheimer s and dementia..Eat these foods to protect brain cells, improve your memory and even reduce your odds of developing Alzheimer s disease. . Walnuts are one of the best .