Lose Weight with Green Tea
Lose Weight with Green Tea |
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Green Tea and Weight Loss
Green tea is one of the most popular herbal supplements in the world. In Asia, it is prized for its many health benefits, including lowering cholesterol and losing weight. Green tea comes from the Camellia sinensis plant. Green tea leaves are rich in catechin polyphenols, including EGCG, which may be beneficial to the cardiovascular system. The catechins not only help burn calories and lower LDL cholesterol, but may also be able to mildly reduce body fat. There have been no long term studies done on green tea and weight loss in humans. Much of what you hear about the benefits of green tea comes from two studies in 1999 and 2005. These studies are often quoted in part on the internet as major selling points for the product advertised. To help you decide for yourself whether the claims are true, let’s examine two advertisements. Writing for VitaHealth, Rebecca Prescott reported that oolong tea or green tea extract resulted in a 3-4% increase in energy used by the body. She quoted the Linus Pauling Institute as saying this was "apparently due to increased fat oxidation and thermogenesis (energy used in heat production).” She also referred to a study done at the University of Geneva in Switzerland published in November 1999 in the American Journal of Clinical Nutrition (AJCN). Researchers there found that men who were given a combination of caffeine and green tea extract burned more calories than those given only caffeine or a placebo. Sounds good and its scientifically based. Jennifer Warner wrote for MedicineNet.Com. She quoted a 2005 Japanese study published in the January issue of the AJCN that drinking green tea may fight fat. It showed that people who drank a bottle of tea fortified with green tea extract every day for three months lost more body fat (5.3 pounds) than those who drank a bottle of regular oolong tea (2.9). Nagao and his team of researchers reported that the catechins found in green tea may trigger weight loss by stimulating the body to burn calories and decreasing body fat. She quoted Nagao as saying "these results suggest that catechins contribute to the prevention of and improvement in various lifestyle-related diseases, particularly obesity." This also sounds good and its also scientifically based.
Should you now rush out and start using a green tea diet? Is green tea the magic bullet to loose weight without dieting or exercising? “And now for something completely different,” the information that marketers don’t tell you. In the 1999 study referred to previously, the Pauling Institute was not writing about green tea and human weight loss, but rather the reduction of layers of fat surrounding tumors in rats. In 2005, it published in its Micronutrient Information Center that “there is no evidence from controlled clinical trials that tea or tea extracts promote weight loss or improve weight maintenance in humans.” In the 2005 study referred to previously, the Marketer neglected to say that the study by Nagao involved only 35 Japanese men in the Kao Corporation in Tokyo. You could poll 35 of your friends, relatives and co-workers and probably get similar results if you asked them if they believed that green tea causes weight loss. This is not a statistically large enough sample to say that it is applicable to most men. As you can see in this very small sampling of advertisements, what sounds too good to be true is just that. Take everything you read about green tea and weight loss with a grain of salt. As with all other weight management programs, you will get the best results by eating less and exercising more. Before investing your money in weight loss products or programmes, do some research into the validity of the claims made about them. You may want to walk away if you read “Results not typical” or “Statements not evaluated by the FDA. Products not intended to treat, cure, or prevent diseases.” If the print is extra fine, that may mean that the marketer knows the claims about the product are inaccurate.
References http://lpi.oregonstate.edu/infocenter/phytochemicals/tea/index.html#weight
http://www.ajcn.org/cgi/content/full/81/1/122
http://www.vitaminstohealth.com/green-tea-weight-loss.html
http://www.medicinenet.com/script/main/art.asp?articlekey=55970
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All tools and information on this site are intended as an aid to help healthy adults lose weight and not intended as medical advice. The information presented here is not for pregnant or breast-feeding women or for any person under the age of 18. If you suffer or think you may suffer from any medical condition you should consult your doctor before starting any weight loss exercise regime. Any weight loss exercise programs or diet should be started slowly and we advise you to always consult your doctor or physician beforehand. |
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