By Susi May

Between its metabolism-boosting powers and ability to prevent colds, green tea is a miracle in your mug. While there are several reasons to sip it each day, many wonder if one glass alone can provide you with the acclaimed benefits. Before you go to town guzzling, learn if it's possible to have too much of a good thing (the results may surprise you).

If you find yourself drinking a cup or two of green tea a day, you're doing things right! Dr. Zuo Feng Zhang, a cancer epidemiology researcher at UCLA, and the University of Maryland Medical Center recommend two to three teacups (not mugs) a day, which will prove beneficial to your health.

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