 "Vaccinium myrtillus" fruits have been used in traditional Austrian medicine internally (directly or as tea or liqueur) for treatment of disorders of the gastrointestinal tract and diabetes.Herbal supplements of "V. myrtillus" (bilberry) on the market are used for cardiovascular conditions, diabetes, as vision aids, and to treat diarrhea and other conditions.Researchers are interested in bilberry because of its high concentrations of anthocyanins, which may have various health benefits.