Green Tea
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Green tea information
Green tea is a drink made from the steamed and dried leaves of the Camellia
sinesis plant, a shrub native to Asia. Black tea is also made from this
plant, but unlike green tea, it is made from leaves that have been fermented.
(This may reduce the levels of some compounds, such as antioxidants,
in black tea.)
Green tea has been used as a medicine in China for at least 4,000 years.
Green Tea and Health
Some researchers believe green tea may have a protective effect against certain cancers...
http://www.cancer.org/docroot/ETO/content/ETO_5_3X_Green_Tea.asp?sitearea=ETO
Green tea and Atherosclerosis ,High cholesterol ,Cancer ,Inflammatory Bowel Disease (IBD) ,Diabetes ,Liver disease ,Weight loss | University of Maryland Medical Center (UMMC)
Green tea has been extensively studied in people, animals, and laboratory experiments. Results from these studies suggest that green tea may be useful for the following health conditions...
http://www.umm.edu/altmed/articles/green-tea-000255.htm
Diabetes: Try green tea instead
If you suffer from diabetes, drink plenty of green tea every day. It’s just as effective – and far safer – than the world’s leading anti-diabetes drug Avandia (rosiglitazone), which also increases the risk of heart attack by 43 per cent.
The tea contains an antioxidant called epigallocatechin gallate (EGCG),
which is as effective as Avandia in those with moderate diabetes.
It’s been tested against Avandia on a group of mice with diabetes,
and the mice that were fed EGCG were just as able to tolerate sugar
and produce insulin as the mice given Avandia. At the end of the 10-week
trial, the green tea extract preserved insulin-producing tissue and
gave other protective effects in the pancreas.
The new study, prepared by researchers at the Karolinska Institute
in Sweden, confirms what we’ve known for a long time. Green tea
was first mooted as a successful treatment for diabetes 70 years ago,
and recent studies among humans have found that the more green tea you
drink, the better. The most powerful benefits have been among people
who drink up to six cups of the tea every day.
(Source: European Association for the Study of Diabetes, Amsterdam,
19 September 2007).
Green tea for long life?
October 7, 2007
People who drink at least a pint of green tea each day have a lower risk of death, a Japanese study shows.
The lower overall death risk among green tea drinkers appears to be due to a lower risk of death from heart disease. The benefit of green tea is especially pronounced in women, find Shinichi Kuriyama, MD, PhD, Tohoku University School of Public Policy in Sendai, Japan, and colleagues.
Green tea is a very popular drink in Japan. But some people drink more than others do. Women who drink five or more 3.4-ounce cups of green tea every day cut their risk of heart disease by 31% compared with women who drink one or fewer 3.4-ounce cups. Men who drink this much green tea cut their heart disease risk by 22%.
http://www.tehrantimes.com/index_View.asp?code=154450Research Discovers Green Tea Inhibits Cancer of Esophagus
June 1, 1994
Green tea, the beverage of choice for millions of Asians, may help protect regular drinkers against cancer of the esophagus, researchers reported today.
Building on findings that green tea reduced the incidence of esophageal cancer in rats and mice, scientists studied records of 902 victims of the disease and 1,552 healthy people in Shanghai and concluded it apparently worked that way on humans, too.
For nonsmokers and nondrinkers of alcohol, "risks for green tea
drinking were reduced by 57 percent for men and 60 percent for women,"
the researchers reported in The Journal of the National Cancer Institute.
http://query.nytimes.com/gst/fullpage.html?res=990DE6DF103BF932A35755C0A962958260
Green Tea Extract Targets Cancer Without Hurting Healthy Cells
By Miranda Hitti
WebMD Medical NewsFeb. 15, 2005 -- Green tea's reputation as a powerhouse against cancer keeps growing. Now, scientists have new insights on how green tea thwarts cancer.
Green tea extract has shown promise against cancer in numerous studies. Those findings came from animal studies and epidemiologic research, which tracks a disease's occurrence in a large population of people.
In other words, the human studies on green tea are mainly based on observation and don't prove that tea is responsible for results. But as one of the world's most popular drinks, tea is widely considered healthy, whether it's green, black, or white tea. However, green tea and green tea supplements generally contain higher amounts of disease-fighting antioxidants called polyphenols than black tea.
For instance, studies on mice showed that green tea helped prevent prostate cancer growth. Green tea extract is also reported to induce cancer cell death and starve tumors by curbing the growth of new blood vessels that feed them.
But exactly how that happens isn't clear. Tea's antioxidants may protect
against some forms of cancer. They may also help prevent heart disease
by relaxing blood vessels and preventing blood clots. But the precise
ways green tea affects cancer aren't fully understood.
http://www.webmd.com/food-recipes/news/20050215/green-teas-record-against-cancer-grows
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