Cranberry SAP-UTICranberry concentrate (whole berries) to prevent UTIs (science based) Native to North America, cranberries have been used as a medicinal agent for centuries. Cranberries contain proanthocyanidins, which have been shown to inhibit fimbrial adhesion of bacteria, including Escherichia coli, to the urinary tract epithelium, thereby preventing bacterial overgrowth and infection. These unique proanthocyanidin compounds, and not urine acidification, are