Blueberries

Blueberries deliver the highest antioxidant capacity per serving of any common fruit, with clinical trials showing a 12% improvement in memory recall among older adults who consume one cup daily. Their anthocyanins reduce DNA damage by 20% and lower systolic blood pressure by an average of 5 mmHg, offering broader cellular protection without the caloric density of fatty fish. Outperforming #2 Salmon in direct antioxidant potency, blueberries provide a distinct advantage for age-related cognitive decline.