“D-Mannose is a naturally occurring sugar found in cranberries that has been proven to help prevent and reduce the severity of urinary tract infections. It is the active ingredient in cranberries, minus the sugar that usually comes in large amounts with the juice. D-mannose works by inhibiting bacteria from lining the walls of the urinary tract. If the bacteria can’t latch onto the urethra or bladder, it is less likely to cause an infection.”