so there was another large scale study with over 25,000 men fruit intake was associated with a 14% reduction in Ed citrus fruits were associated with a 12% reduction in Ed and regularly blueberry intake so blueberry specifically saw a 22% reduction in Ed and when you combined high flavonoid intake with physical activity those men had a 21% lower risk of Ed compared to those who did not take flavonoids in and had no physical activity these specific types of berries like blueberries and strawberries are rich in what's called anthocyanins and citrus fruits like oranges and grapefruits are high in flavonones so both of these types of flavonoids actually work again by improving blood flow and enhancing nitric oxide production in fact in another case control study looking at just 350 young men they found that for each additional daily fruit portion that they consumed it lowered their Ed Risk by 38% let me say that again if they ate fruit one serving a day it reduced their risk of Ed by 38%