A dietary habit linked to improved cognitive function is the regular consumption of omega-3 fatty acids, particularly DHA, found in fatty fish. These fatty acids support brain health, enhance memory, and may protect against cognitive decline. Other beneficial foods include those rich in antioxidants such as berries, nuts, and dark chocolate, which can reduce inflammation and oxidative stress in the brain. Additionally, a balanced diet with adequate folate and B vitamins is essential for optimal brain function and cognitive performance.