Black tea extract prevents obesity
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By David Liu, Ph.D.
Sunday Aug 21, 2011 (foodconsumer.org) -- There are many diets you can try to avoid or prevent obesity. But chances are good that none of them work for you. The problem is that most people couldn't control their daily intake of calories because foods with high fat, high salt and high sugar taste just too good.
New research suggests that simply taking some extract of a Chinese black tea called Pu-Erh tea after meals may help you stop gaining weight even if you continue eating a typical obesity-inducing Western diet full of high fat, high protein and high energy.
The research conducted by Yasuyuki Oi of Nippon Supplement, Inc. based out of Osaka, Japan found mice given the black tea extract in some dose did not raise levels of blood triglycerides after ingestion of a corn oil emulsion.
The researchers published the results in Phytotherapy Research. In the research, female ddy mice were given one of seven diets with either high fat, or a normal dietary composition, or supplemented black tea extract, or gallic acid in different doses for a period of 12 weeks.
Black tea extract and gallic acid in doses of 0.6 percent and 0.1 percent respectively significantly suppressed weight gain.
The researchers conducted further research and found that black tea extract and gallic acid inhibited pancreatic lipase activity, which would otherwise release fatty acids and triglycerides into the blood stream and promote weight gain, leading potentially to obesity.
The results suggest that people may take 5 to 10 grams per day of black tea extract prepared from the Chinese tea Pu-erh tea to help prevent obesity. This dietary intervention may be particularly effective in those who use a high fat diet.
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