Pu-erh Tea - Health

Health

See also: Potential effects of tea on health

Scientific studies report that consumption of pu'er tea leaves significantly suppressed the expression of fatty acid synthase (FAS) in the livers of rats; gains in body weight, levels of triacylglycerol, and total cholesterol were also suppressed. The compositions of chemical components found to have been responsible for these effects (catechins, caffeine, and theanine) varied dramatically between pu-erh, black, oolong, and green teas.

Specific mechanisms through which chemicals in pu'er tea inhibit the biosynthesis of cholesterol in the laboratory have been suggested.

Pu'er tea has also been found to have antimutagenic and antimicrobial properties in vitro. (In vitro studies do not necessarily correlate to medicinal effects. An article in Microbiologist, The magazine of the Society for Applied Microbiology, in March 2008, Vol 9 No 1, p35, found that tea had many in vitro antimicrobial properties against many organisms; for example English Breakfast tea at the concentration used for drinking had significant antimicrobial effect on the lethal anthrax bacillus (Bacillus anthracis) and many others, but this did not make it a useful treatment for anthrax.)

Pu'er tea is widely believed in Chinese cultures to counteract the unpleasant effects of heavy alcohol consumption. In traditional Chinese medicine it is believed to invigorate the spleen and inhibit "dampness." In the stomach, it is believed to reduce heat and "descends qi".

Pu'er tea is widely sold, by itself or in blends, with claims that it promotes loss of body weight in humans, although there is no accepted evidence for this.

Some pu'er brick tea has been found to contain very high levels of fluorine, because it is generally made from lesser quality older tea leaves and stems, which accumulate fluorine. Its consumption has led to fluorosis (a form of fluoride poisoning that affects the bones and teeth) in areas of high brick tea consumption, such as Tibet.

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