Different foods have various nutrients that are beneficial to brain health. For instance, antioxidants in blueberries and dark chocolate can protect the brain from oxidative stress, which can negatively affect memory and other brain functions. Turmeric contains curcumin, which can cross the blood-brain barrier and has been shown to improve memory. Other nutrients like vitamins and minerals, found in foods like broccoli, pumpkin seeds, and oranges, also play crucial roles in maintaining and enhancing brain health.