Cranberry products and prevention of urinary tract infections

JAMA. 2013 Oct 2;310(13):1395-6. doi: 10.1001/jama.2013.277509.


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.

Publication types

  • Comment

MeSH terms

  • Beverages*
  • Female
  • Humans
  • Male
  • Phytotherapy / methods*
  • Plant Preparations / therapeutic use*
  • Urinary Tract Infections / prevention & control*
  • Vaccinium macrocarpon*


  • Plant Preparations