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Effect of ingesting cranberry juice on bacterial growth in urine.

Posted: 
November 5, 2010
Authors: 
Tong H, Heong S and Chang S
Journal: 
Am J Health Syst Pharm 63(15):1417-9
Abstract: 

No abstract - Introduction: Cranberry juice has been shown to have a significant effect in preventing urinary tract infections (UTIs) in a number of clinical trials. This property of cranberry juice has been attributed to an ability to inhibit bacterial adherence to cells and possibly its urine acidification effects. However, cranberry juice’s antibacterial activity in urine remains unknown. Although a preliminary study by Lee et al. found that concentrated cranberry juice has some antibacterial activity, cranberry juice was studied, not the resultant urine samples. Therefore, our study investigated whether cranberry juice has antibacterial effects in urine. We excluded acidification as a possible antibacterial factor.