Cranberry Products and Prevention of UrinaryTract Infections

Ruth Jepson, Jonathan Craig, Gabrielle Williams

Research output: Contribution to journalShort surveypeer-review

27 Citations (Scopus)


Clinical Question Are cranberry products (juice, tablets, capsules, and syrup) associated with prevention of urinary tract infections (UTIs) compared with placebo or other treatments?

Bottom Line Cranberry products are not associated with prevention of UTIs. However, lack of association of cranberry products with a reduced incidence of UTIs in clinical trials may be due to lack of participant adherence, lack of sufficient active ingredient in the cranberry product, or lack of sufficient statistical power.

Urinary tract infections (UTIs) are among the most common medical conditions in primary care settings. Complications resulting from persistent and repeated UTIs lead to more than 1 million hospital admissions annually in the United States. Cranberry products (particularly in the form of cranberry juice) have been used for several decades to prevent and treat UTIs.
Original languageEnglish
Pages (from-to)1395-1396
Number of pages2
JournalJAMA: Journal of the American Medical Association
Issue number13
Publication statusPublished - 2 Oct 2013


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