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Pomegranate juice: A cure for prostate cancer?

Is it true that pomegranate juice may slow the growth of prostate cancer? How much should I drink?

- Ed / Texas

Mayo Clinic urologist Erik Castle, M.D., and colleagues answer select questions from readers.

Answer

Early research suggests that drinking pomegranate juice may slow the progression of prostate cancer.

For example, in one study, the length of time it took for prostate-specific antigen (PSA) to double after surgery or radiation for prostate cancer was significantly longer in men who drank 8 ounces (237 milliliters) of pomegranate juice daily for up to two years. A longer doubling time indicates that the cancer is progressing less rapidly.

Although these results are promising, remember that they're only preliminary. It's too early to say if pomegranate juice can definitely slow the growth of prostate cancer — nor is it clear if pomegranate juice alters the course of the cancer overall by helping men live longer or better.

If you choose to drink pomegranate juice, consult your doctor first. Although pomegranate juice is generally safe, it may affect the metabolism of certain prescription medications.

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Dec 1, 2008