Cranberry (Vaccinium macrocarpon) helps prevent urinary tract infections. Substances in cranberry prevent bacteria from sticking to the lining of the urinary tract and bladder, where they multiply and cause infection.

Harvard researchers studied over 153 older women, average age 79. Half were give 10 ounces of cranberry juice everyday and the other half were given a look-alike drink containing no cranberry. The researchers discovered that the women who drank cranberry juice were 58% less likely to have infection-causing levels of bacteria in their urine than those who had no cranberry juice.

Natural Factors standardized juice extract offers more consistent anti-adherence activity, in a convenient capsule, and is much lower in sugar than cranberry juice cocktail.