Antioxidants in Green and Black Tea
Tea is brimming with antioxidants, the disease-fighting compounds that help your body stave off illness.
By Jeanie Lerche Davis
Reviewed By Brunilda Nazario, MD
Read the tea leaves, caffeine lovers. Tea is gaining ground over coffee. Even Starbucks is bucking up its tea menu. The health benefits of tea are one compelling reason: Green and black teas have 10 times the amount of antioxidants found in fruits and veggies, by one estimate.
Studies of humans and animals show that the antioxidants in black and green teas are highly beneficial to our health, says 82-year-old John Weisburger, PhD, senior researcher at the Institute for Cancer Prevention in Valhalla, N.Y.
"I've published more than 500 papers, including a hell of a lot on tea," says Weisburger, who drinks 10 cups daily. "I was the first American researcher to show that tea modifies the metabolism to detoxify harmful chemicals."
Green tea, black tea, oolong tea -- they all come from the same tea plant, Camellia sinensis. The leaves are simply processed differently, explains Weisburger. Green tea leaves are not fermented; they are withered and steamed. Black tea and oolong tea leaves undergo a crushing and fermenting process.
All teas from the camellia tea plant are rich in polyphenols, which are a type of antioxidant. These wonder nutrients scavenge for cell-damaging free radicals in the body and detoxify them, says Weisburger. "Astounding" aptly describes tea's antioxidant power, he tells WebMD. "Whether it's green or black, tea has about eight to 10 times the polyphenols found in fruits and vegetables."
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