Antioxidants and omega-3 fatty acids in some nuts and oils may curb inflammation. Inflammation is linked to age-related dementia. Blueberries, curry powder, pomegranates, walnuts, flaxseed are brain foods. You can spice up your salad by adding walnuts and flaxseed oil. There's buzz about blueberries, for instance, for their memory-boosting potential.