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A cup of tea provides an antioxidant boost that may protect against several types of cancers, but so far the link has been reliably shown only in tea-sipping rodents and test tubes -- not in people. The antioxidants in green and black tea, called catechins, are "more potent than vitamins C and E" in their ability to scavenge potentially carcinogenic compounds called free radicals, said Catherine Rice-Evans, Ph.D., of the Antioxidant Research Centre in London.
However, Rice-Evans and other tea experts cautioned that despite promising early research, better animal models and more robust epidemiological studies are needed before tea research Tea Therapy? Out of the Cup, Into the Lab