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Green tea boost daily calorie output 4 percent
Tuesday, December 02, 2003 5:00 am Email this article
Green tea increases the number of calories burned as well as the amount of fat that is burned according to recent research. This calorie-boosting effect is not simply a result of green tea's caffeine content, but also involves green tea polyphenols.
Men who were given capsules of green tea extract containing 50 mg of caffeine and 125 mg of the green tea polyphenol epigallocatechin gallate before each meal increased daily calories burned by 4 percent as well as increasing the amount of fat that was burned.
There was no calorie-burning or fat-burning effect when on separate days these same men were given identical-looking capsules containing either 50 mg of caffeine or a placebo.
Daily noradrenaline output was 40 percent higher with green tea than with a placebo.
The study involved ten men.
Dullo AG, Duret C, Rohrer D, Girardier L, Mensi N, Fathi M. A green tea extract (AR 25) rich in catechin polyphenols stimulates 24-hour energy expenditure and fat oxidation in humans. International Journal of Obesity, 1999 May, 23(5):S174(abstract 579).
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