Both blueberries and strawberries have high levels of antioxidants. They both contain anthocyanins, which help open blood vessels and allows for smoother blood flow throughout the body. They also contain vitamin C and manganese. Strawberries provide a higher amount of vitamin C than oranges, at 141% per cup! The antioxidants in blueberries have been known to protect the retina from oxygen damage and sun damage. You can learn more about their benefits here.