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Ask Tufts Experts April 2014 Issue

Q. How much green tea should one consume daily to get the benefits I read about in your newsletter? Is there a time span as well of so many years of drinking a certain amount to benefit?

A. Jeffrey Blumberg, PhD, director of Tufts’ HNRCA Antioxidants Research Laboratory, answers: “The health benefits associated with drinking tea (green, oolong or black) are dose-related, i.e., the more you consume, the lower your risk for some chronic conditions, especially hypertension and coronary artery disease. Most observational studies suggest that people drinking one cup of tea daily have a lower risk than non-tea drinkers. Those drinking two to three cups daily have a lower risk than those drinking less and those drinking four or five or more cups daily have the lowest risk of all. Some acute benefits of tea on cardiovascular function can be observed after drinking a single cup, but longer-term clinical trials suggest several months of daily intake provide more meaningful outcomes.”

Comments (1)

Having read about the health benefits of green tea long ago, it has become my beverage of choice after breakfast. (Someone told me never to drink green tea on an empty stomach.) My favorite is a high-grade Japanese tea called Gyokuro. I sometimes mix into the brew a little white tea. Recently I bought a Japanese iron tea pot that holds two cups. It adds to the taste and pleasure of my version of a tea ceremony. I drink two cups from the first infusion and then repeat with the second. The resulting mild dose of caffeine gives me just the buzz I'm seeking, but when I skip the caffeine for a day or two, I get a slight headache from caffeine withdrawal.

Posted by: William Goodman | April 4, 2014 8:27 AM    Report this comment

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