2. Walnuts
All nuts are good for you, but walnuts have a lot of omega-3 fatty acids that help fight inflammation. Omega-3s help your brain stay healthy and help you think better. They also lower your risk of getting a brain disease. Walnuts are also full of heart-healthy unsaturated fats, fiber, and protein, so eat them once a day for breakfast or snacks. You can add walnuts to oatmeal, salads, grain bowls, or even chia seed pudding (which also contains omega-3s and fiber) for health benefits.