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Ewing, NJ
A 22-year-old male asked:

I take cranberry pills sometimes just to flush out my kidneys and i drink plenty of water daily. im 22 the bottle says equivalent to 8,400mg of cranberry. is that too much? can that cause kidney stones? i read these pills can cause stones?

2 doctor answers6 doctors weighed in
Dr. Gurmukh Singh
Pathology 51 years experience
Not useful: Taking cranberry tablet is unlikely to be doing you any good, other than lightening your wallet. Drink enough water daily so that your urine is mostly colorless. Cranberry juice has lots of sugar, so be careful if you switch to juice. Get HPV vaccine.
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Dr. Charles Turck
Pharmacology 19 years experience
Potentially: A few small studies have found that taking cranberry can also increase your risk of developing kidney stones, but there have been widely results concerning what dose puts a person at higher risk. Perhaps more importantly, there is very little evidence to support the use of cranberry supplements to help “flush out your kidneys” and prevent urinary tract infections at all.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Mar 24, 2019


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