Swedish researchers have found promising but far-from-conclusive evidence that drinking a couple of cups of tea every day might help reduce the risk of developing ovarian cancer.
The study involved 61,057 Swedish women who answered a questionnaire about their diets and then were tracked for an average of 15 years through 2004.
During that time, 301 women developed ovarian cancer. Those who reported drinking two or more cups of tea a day were 46 percent less likely to develop the disease than women who drank no tea. Drinking less than two cups also appeared to help, but not as much.
The researchers did not break out the results by tea types, but most of the tea drinkers consumed black tea. Both black and green tea contain polyphenols - substances thought to block cell damage that can lead to cancer.
Previous studies on whether tea might help prevent various kinds of cancer have yielded conflicting results.
Researchers Susanna Larsson and Alicja Wolk of the Karolinska Institute in Stockholm said more research is needed to sort out the inconsistencies.
Their study was published in Monday's Archives of Internal Medicine, the AP reports.
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