Health Benefits Of Green Tea
The miracle of green tea
Is another food or drink reported to have so many health benefits as green tea? The Chinese have known about the medicinal benefits of green tea since ancient times, using it to treat everything from headaches to depression. In her book green tea: the natural secret for a healthier life, Nadine Taylor States that green tea has been used as a medicine in China at least 4000 years.
Today, scientific research in Asia and the West that hard evidence for the health benefits long associated with drinking green tea. For example, in 1994 the journal of the National Cancer Institute published the results of an epidemiological study indicating that drinking green tea reduces the risk of esophageal cancer in Chinese men and women by nearly sixty percent reduced.
Researchers at Purdue University recently concluded that a compound in green tea inhibits the growth of cancer cells. There is also research indicating that drinking green tea lowers total cholesterol levels, as well as improving the ratio of good (HDL) cholesterol to bad cholesterol (LDL).
In short, here are some medical conditions in which drinking green tea is known for its helpful:
- Rheumatoid arthritis
- high cholesterol
- cariovascular disease
- decreased immune function
What makes green tea so special?
The secret of green tea lies in the fact that it is rich in catechin polyphenols, particularly epigallocatechin gallate (EGCG). EGCG is a powerful anti-oxidant: Besides inhibiting the growth of cancer cells, it kills cancer cells without harming healthy tissue. It is also effective in lowering LDL cholesterol levels and inhibition of the abnormal formation of blood clots. The last takes on added importance if you that thrombosis (the formation of abnormal blood clots devises) is the main cause of heart attacks and strokes.
Links are created between the effects of drinking green tea and the French Paradox. for years, researchers were surprised at the fact that, despite consuming a diet rich in fat, the French have a lower incidence of heart disease than Americans have. The answer turned out to lie in red wine, in which resveratrol, a polyphenol with which the adverse effects of smoking and a fatty diet. In a study by researchers at the University of Kansas 1997 determined that EGCG twice as powerful as resveratrol, which explain why the number of heart disease among Japanese men is quite low, although approximately seventy-five percent are smokers.
Why not other Chinese tea have similar health giving properties? Green, oolong and black tea come from the leaves of the Camellia sinensis plant. What sets green tea apart is the way it is processed. Green tea leaves are steamed, which prevents the EGCG compound are oxidised. On the other hand, are black and oolong tea leaves made from fermented leaves, resulting in the EGCG is converted into other compounds that are not nearly as effective in preventing and fighting various diseases.
Other benefits of green tea
New evidence is emerging that green tea can even help dieters. In November 1999 the American Journal of Clinical Nutrition published the results of a study at the University of Geneva in Switzerland. Researchers found that men who are a combination of caffeine and green tea extract burned more calories than those received by only caffeine or a placebo.
Green tea can also help prevent tooth decay! Just as his abilities destroying bacteria can help prevent food poisoning, it can also kill the bacteria that causes dental plaque. Meanwhile, skin preparations containing green tea – of deodorant to creams – begin to appear on the market.
Harmful effects of green tea
To date, the only negative side effect reported from drinking green tea is insomnia due to the fact that it contains caffeine. However, green tea contains less caffeine than coffee: there are about 30 to 60 mg. of caffeine in six-eight ounces of tea, compared to more than one hundred mg. in eight ounces of coffee.
How much you should drink green tea?
There are so many answers to this question as there are researchers investigating the natural properties of green tea. For example, herbs for Health magazine quotes a Japanese report stating that the men who drank 10 cups of green tea per day remained cancer-free for three years longer than men who drank less than three cups a day (there are about 240-320 mg polyphenols in three cups of green tea).
Meanwhile, a study by Cleveland’s Western Reserve University concluded that drinking four or more cups of green tea a day can help prevent rheumatoid arthritis or symptoms in individuals already suffering from the disease. And Japanese scientists at the Research Institute Saitama cancer discovered that less recurrances of cancer of the breast, and the disease spread less quickly, women with a history of drinking five or more cups of green tea a day.
It gets more confusing. A study by the University of California on the cancer-preventive qualities of green tea concluded that you could probably reach the desired level of polyphenols by drinking just two cups a day. On the other hand, a company selling a green tea capsule formula calls for ten cups a day are needed to take advantage of the maximum benefits.
How can you feel of this conflicting claims? Having regard to all the evidence, it’s probably safe to plan on four to five cups of green tea a day drinking. If you are a true lover, by all means drink more; but health benefits remains by further research to determine whether you will derive added.
How to brew a cup of green tea?
Production of the perfect cup of green tea is a tricky process. If not properly treated, can those same polyphenols that health benefits offer ruin the taste, the tea flavor grassy. make it is particularly important not to over-brew green tea. While it is best to follow the manufacturer’s instructions for each variety of green tea, here are some basic instructions:
- Use a tea bag or tea, 2-4 grams per Cup.
- Fill a kettle with cold water and bring to a boil.
- After disconnecting the boiler, let stand for up to 3 minutes.
- The heated water pour over the tea bag or tea, and allow it to steep for 3 minutes. If using a tea bag, remove the bag.
- Allow to steep for three more minutes to cool down.
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