Bilberry has been clinically shown to lower the risk of a number of diseases affecting the eyes, heart and cardiovascular system, blood sugar, and certain types of cancer, especially estrogen-sensitive cancers. It has antioxidant and eye protective properties. Bilberries contain flavonoids, anthocyanosides, and tannins.
Bilberries benefit the kidneys and urinary tract, lessen fluid retention and varicose veins, reduce fatigue, and improve heart function and eyesight.