From staff reports
Mayo Clinic researchers say green tea is not an effective treatment for advanced prostate cancer.
Forty-two patients with few other treatment options drank concentrated, presweetened green tea daily either hot, iced, in juice or with additional sweetener. Many patients dropped out when tests showed their cancers were still active.
Although studies have shown that prostate cancer cells die when exposed to polyphenol compounds found in green tea, and the tea has been shown to reduce tumor size and cancer spread in mice, this study failed to show an anticancer effect in the patients studied, according to an article in the March 15 issue of the journal Cancer.
