Does cranberry juice cure urinary tract infections?
Cure is too strong a word, but cranberry juice has been shown in carefully controlled experiments to help prevent recurrent urinary tract infections, or UTIs. Research in the late 1980s reported that cranberry juice (as well as blueberry juice) prevented common bacteria from adhering to cells that line the urinary tract. Studies in the ’90s found that women who drank about 10 oz. of cranberry juice a day had lower levels of bacteria in their urine, and were 75% less likely to develop urinary tract infection in the next month.