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For years, people have used cranberry juice to prevent and
urinary tract infections (UTIs). There is limited
proof that this is worth trying.
Pure cranberry juice, cranberry extract, or cranberry supplements may help prevent repeated UTIs in women, but the benefit is small. It helps about as much as taking antibiotics to prevent another UTI.footnote 1 Using cranberry products to prevent UTIs may be expensive, and some women complain of the taste. No single concentration of cranberry juice, extract, or supplement has been studied, so it's hard to know which product to choose.
If you do want to try cranberry juice to prevent UTIs, it's better to drink pure, unsweetened cranberry juice (rather than cranberry juice cocktail). Drinking cranberry juice cocktail doesn't seem to prevent UTIs better than drinking any other fruit juice.footnote 2
There is no proof that cranberry can cure a UTI. Cranberry
is not well tested as a UTI treatment.
Jepson RG, et al. (2012). Cranberries for preventing urinary tract infections. Cochrane Database of Systematic Reviews, (10).
Barbosa-Cesnik C, et al. (2011). Cranberry juice fails to prevent recurrent urinary tract infection: Results from a randomized placebo-controlled trial. Clinical Infectious Diseases, 52(1): 23–30.
ByHealthwise StaffPrimary Medical ReviewerE. Gregory Thompson, MD - Internal MedicineAdam Husney, MD - Family MedicineSpecialist Medical ReviewerAvery L. Seifert, MD - Urology
Current as ofOctober 11, 2016
Current as of:
October 11, 2016
E. Gregory Thompson, MD - Internal Medicine
& Adam Husney, MD - Family Medicine & Avery L. Seifert, MD - Urology
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