Cranberry Juice Treatment For A Uti

A urinary tract infection, commonly called UTI, is one of the most common types of infection in the human body. These infections account for approximately 8.3 million doctor visits annually, according to the National Institute of Diabetes and Digestive and Kidney Diseases. Cranberry juice has long been a popular remedy for UTIs, but strong medical evidence to support its effectiveness is lacking.

Expert Insight

Research conducted by the National Institutes of Health indicates that cranberry juice may be effective in preventing UTI, but not as a stand-alone treatment of an existing infection. Of the numerous studies conducted, no single one has produced conclusive results regarding use in preventing UTI. When taken collectively, however, enough convincing evidence exists, along with laboratory research, to support its use as a preventive measure, according to Medline Plus.

Considerations

Having one urinary tract infection puts you at greater risk for having others. Cranberry juice's possible preventive role suggests regular use in attempting to prevent recurring infections.

Features

Studies conducted by the National Institutes of Health indicate that cranberry juice helps prevent UTIs because it contains substances that prevent bacteria from sticking to the walls of the urinary tract. The theory that cranberry juice prevents bacteria growth because it increases acid in the urine is no longer valid.

Dosage

Because the U. S. Food and Drug Administration does not provide strict regulation of herbs and supplements, the National Institutes of Health bases its dosage recommendations on "scientific research, publications, traditional use, or expert opinion." To prevent urinary tract infection in adults 18 years and older, recommended doses range from 15 to 30 ml of unsweetened 100 percent cranberry juice daily to 90 to 480 ml of cranberry cocktail twice daily. Because of lack of scientific evidence, there are no dosage recommendations of cranberry juice for prevention of urinary tract infection in children younger than 18 years.

Warnings

Although generally considered safe, cranberry juice in high doses may present some health problems. The most common include diarrhea and stomach problems. Consumption of cranberry juice on a regular basis also may increase your risk of developing kidney stones, especially if you have a family history of kidney stones. You also should avoid drinking cranberry juice if you are taking warfarin, a blood-thinning medication, as interactions may cause excessive bleeding.