Green tea extract may not help fight cancer.(World News: Coffee and Tea Reports from the Front Line)

Tea & Coffee Trade Journal, May, 2005

Green tea is often drunk by people in hopes of warding off cancer, heart disease and immune system ailments, but it may be a misconception that supplements made from concentrated tea extract will multiply those benefits.

A study completed by University of Mississippi researchers indicates that extremely high doses of green tea extract actually may activate rather than shut down--genetic mechanisms that help certain tumors survive and grow.

"Drinking green tea is still good for you," said Yu-Dong Zhou, a molecular biologist at the university's National Center for Natural Products Research. "There are thousands of years of evidence on that, but the idea of taking the equivalent of hundreds of cups of tea a day is something that needs to be looked at...

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