Traditionally used in herbal medicine to help prevent recurrent urinary tract infections (UTIs). Source of antioxidants for the maintenance of good health. Cranberries contain proanthocyanidins that help prevent urinary tract infections by preventing harmful bacteria from adhering to the urinary tract and bladder. Unlike antibiotics that decimate populations of beneficial probiotics, promoting the creation of more resistant strains of infection, the use of cranberries to solve urinary system problems provides a natural approach to treat this condition.