Yesterday, the Cochrane Group released its latest analysis of studies of cranberry juice or supplements for urinary tract infection (UTI) prevention. When they first examined the evidence in 2008, 10 studies suggested that there might be benefits for women with recurrent UTIs. Now, with 14 more studies and over 4,000 patients, the evidence shows no benefit from cranberry juice in UTI prevention. Data on cranberry pill supplements remains unclear.
Part of the issue appears to be adherence to the juice schedule. Participants had to drink juice twice daily. For studies of supplements, the potency of the tablet or capsule often went unreported, making it more difficult to interpret these studies. The group felt more studies of supplements might be in order.
I would be willing to sip a cosmo or two each evening to "support urinary health" as the supplements say. Since each drink includes only an ounce of cranberry juice, and I cannot have them for breakfast, they would seem to be of no documented benefit. Other than those provided by pink martinis, of course!
So ingest cranberries if you like them, but do not depend on them to prevent UTIs.
So drink cranberry