Scientific Effect
Cranberries are a fruit packed with antioxidants. Concentrates of the juice especially have been implicated in reducing the symptoms and frequency of urinary tract infections.
Clinical Study
Effect of oral cranberry extract (standardized proanthocyanidin-A) in patients with recurrent UTI by pathogenic E. coli: a randomized placebo-controlled clinical research study.
Results
"The overall efficacy and tolerability of standardized cranberry extract containing (PAC-A) as a food supplement were superior to placebo in terms of reduced bacterial adhesion; bacterial MRHA negativity; urine pH reduction; and in preventing r-UTI..."
Study Citation
Singh, I., Gautam, L. K., & Kaur, I. R. (2016). Effect of oral cranberry extract (standardized proanthocyanidin-A) in patients with recurrent UTI by pathogenic E. coli: a randomized placebo-controlled clinical research study. International urology and nephrology, 48(9), 1379-1386.
LinkClinical Study
Supplementation with cranberry extract contributed to a significant strengthening of antioxidant potential in individuals exposed to strenuous physical exercise.
Results
"Effects of cranberry (Vaccinum macrocarpon) supplementation on iron status and inflammatory markers in rowers."
Study Citation
Skarpańska-Stejnborn, A., Basta, P., Trzeciak, J., Michalska, A., Kafkas, M. E., & Woitas-Ślubowska, D. (2017). Effects of cranberry (Vaccinum macrocarpon) supplementation on iron status and inflammatory markers in rowers. Journal of the International Society of Sports Nutrition, 14(1), 7.
LinkClinical Study
...cranberry fruits are effective not only in the prevention of urinary tract infection but also for the prevention of oxidative stress.
Results
"Biosafety, antioxidant status, and metabolites in urine after consumption of dried cranberry juice in healthy women: a pilot double-blind placebo-controlled trial."
Study Citation
Valentová, K., Stejskal, D., Bednář, P., Vostálová, J., Číhalík, Č., Večeřová, R., ... & Ulrichová, J. (2007). Biosafety, antioxidant status, and metabolites in urine after consumption of dried cranberry juice in healthy women: a pilot double-blind placebo-controlled trial. Journal of agricultural and food chemistry, 55(8), 3217-3224.
Link