Cranberry products proven to prevent UTIs in some individuals.
A global study published in Cochrane Reviews has determined that cranberry juice and its supplements reduce the risk of repeat symptomatic UTIs in women by more than a quarter, in children by more than half, and in people susceptible to UTI following medical interventions by about 53%. The study authors conclude that while cranberry products do help prevent UTIs in women with frequent recurrence, more studies are needed to further clarify who with UTI would benefit most from cranberry products.