Green Tea to Lose Weight
and Burn Fat
Advice About Weight Loss Benefits of Green
Tea
Scientists believe that green tea may help
people lose weight by boosting their metabolism and reducing appetite.
Green tea has powerful antioxidants and it's health benefits are well
known. Other conditions which research has shown green tea to be effective
against range from lowering cholesterol to cancer prevention.
Green Tea Weight Loss Study of Rats
In one study published in the journal Endocrinology,
a major chemical component of green tea called epigallocatechin gallate,
was injected into rats. This caused them to lose up to 21 percent of their
body weight. After 7 days of daily injections, the rats consumed up to
60 percent less food.
Green Tea Weight Loss Study of Humans
In a small research study published in 1999,
researchers concluded: "Green tea has thermogenic properties and
promotes fat oxidation beyond that explained by its caffeine content per
se. The green tea extract may play a role in the control of body composition
via sympathetic activation of thermogenesis, fat oxidation, or both."
This study on the effect of green tea on weight loss was published in
the American Journal of Clinical Nutrition.
More Fat Calories Burned
In this study on green tea, subjects took
green tea extract plus a caffeine supplement with each meal. Two other
groups took just the caffeine supplements, or a placebo. The subjects
were put on a "typical Western diet" of about 13 percent protein,
40 percent fat and 47 percent carbohydrates. Results showed that those
taking the green tea extract experienced a significant increase in 24-h
energy expenditure and used more fat calories than those using the placebo.
Researchers believe that it's the catechin polyphenols in the green tea
extract which may alter the body's use of norepinephrine, a chemical transmitter
in the nervous system, to increase the rate of calorie burning.
More Weight Loss Research Needed Into Green
Tea
More studies are need before we know for
sure about the link between green tea and weight loss. Meantime if you
have tried and failed to lose weight with conventional weight loss programs,
you may care to give green tea a try. If so, use extracts that have a
standardized polyphenol content. Also, for best weight loss results, remember
to combine your use of green tea with a healthy diet and exercise program.
Sources include:
Dulloo A, et al. Efficacy of a green tea
extract rich in catechin polyphenols and caffeine in increasing 24-h energy
expenditure and fat oxidation in humans. Amer J Clin Nutr 1999;70:1040-45.
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