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A 22-year-old member asked:

Is cranberry juice good for a u.t.i.?

4 doctor answers16 doctors weighed in
Dr. Matthew Thom
Urology 15 years experience
Possibly: Cranberry juice has a substance called tannins which make it harder for bacteria to attach to the bladder and cause infections. Cranberry can help some people reduce the risk of recurrent urinary tract infections. Drinking cranberry juice shouldn't hurt and may help. If your symptoms are not improving, should be evaluated by your physician.
Dr. Madhu Kandarpa
Nephrology and Dialysis 9 years experience
Not known: We hear this a lot but not sure how good it is and i don't think that there is good data to support.
Dr. Robert Donato
Urology 25 years experience
To Prevent UTI ONLY: There is data to support the use of cranberry juice or extract to prevent recurrent, culture proven utis. However, review of studies intending to treat a UTI with cranberry failed to show any benefit. Thus, cranberry juice/extract will only help to prevent utis. Unfortunately, maintaining adequate intake over the long term is difficult, and studies suggest it increases kidney stone production.
Dr. Albert Pizzo
Family Medicine 60 years experience
One of the sugars in cranberry juice is L-mannose which can be purchased and taken at first sign of UTI. Bacteria eat this in bladder and slide off wall to be washed out.
Feb 4, 2012
Dr. Phillip Porch
General Practice 40 years experience
Possibly: Cranberry juice makes the urine more acidly and some bacteria don't grow well in urine that is acidy.

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Similar questions

A 34-year-old member asked:

Why is cranberry juice good for you?

4 doctor answers6 doctors weighed in
Dr. Gurmukh Singh
Pathology 49 years experience
Urinary health: It has vitamins and some material that is useful in preventing urinary infections. Do not over do it as it has lots of sugar in it.

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Last updated Apr 1, 2020
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