The study, funded by a pomegranate juice manufacturer, tested men's levels of prostate-specific antigens (PSAs), a chemical produced by prostate cancer cells, and measured how long it took the PSAs to double in each patient. The men who drank a glass of pomegranate juice daily showed a doubling time of 54 months on average, as opposed to the standard average of 15 months, meaning that pomegranate juice slowed the growth of prostate cancer tumors to less than one-third the typical rate.
The participants showed suppressed PSA levels despite the fact that they were only drinking pomegranate juice, and not supplementing the drink with costly prescription drugs or prohibitively expensive conventional cancer treatments.
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