It is believed that green tea prevents certain types of cancer. But the fermentation process involved in making black tea was thought to destroy the protective compounds. Now researchers from the UK and Italy say that drinking tea can not only stave off heart disease, cataracts and even help women conceive, it can also prevent colon cancer. The researchers found that if rats are given extracts of black Assam tea -- the equivalent of three or four cups a day -- their guts are protected against the effects of a known carcinogen. Mike Clifford of Surrey University, UK, says that other common or garden teas should have the same effects ( Food and Chemical Toxicology , Vol 38, No 1085).
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