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green tea fat burner


Posted by PHILIP on November 22, 1999 at 11:12:57:

In addition to its potential cardioprotective action, green tea extract may serve as an aid to weight loss: in clinical trials it appears to raise metabolic rates and speed up fat oxidatin. Dulloo and colleagues at the University of Geneva, Switzerland, demonstrated that in addition to caffeine, green tea contains catechin polyphenols that raise thermogenesis (the rate at which calories are being burned) and overal energy expenditure. This metabolism-boosting effect seems to be independent of the supplemental caffeine the study's subjects consumed. Although millions of cultures throughout the world consume coffee and tea, only coffee's effect on fat metabolism by virtue of its caffeine content has been widely studied. But caffeine's increase of metabolic rates has only been noted at much higher doses than the 150 mg/daily of this study, which is barely the amount in one cup of brewed coffee. And since caffeine is known to increase heart rate, green tea appears to provide a safer alternative for obese patients who may have hypertension or other cardiovascular problems. Of particular interest in this sutdy is the fact that subjects who received only caffeine--not green tea--showed no change in their metabolic rates. Rather, the authors propose a synergistic interaction between caffeine and other bioactive ingredients in the green tea extract which helped to promote a higher rate of fat burning.

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