Green tea is believed to be in use as a medicine for at least 4000 years in china. It is also believed that green tea lowers the cholesterol levels by increasing the good cholesterol and decreasing the bad cholesterol. Green tea is rich in antioxidant called epigallocatechin gallate (EGCG) .It destroys cancer cells and also inhibits the growth of cancer cells.Even though the French people consume diet rich in fat, they are less prone to heart attack than the Americans. Similarly, even though 75 percent of the Japanese are smokers, they are less affected. This is because EGCG is more in green tea used by them. It acts as a protective agent against premature death from heart attack and cancer.
Green tea also destroys bacteria thus preventing tooth decay. Researchers have also found that green tea even helps dieters. The leaves of green tea can also be used for cooking. The leftover leaves can be used as manure for garden plants to grow better. The ingredient present in green tea is polyphenol. It is the most effective antioxidant. It is present in higher amount in green tea than in black tea.
The basic difference between green tea and other teas like oolong and black tea is that while the latter come from the leaves of camellia simens plant, green tea is processed in a different way. Green tea leaves are steamed which prevents the EGCG, a power antioxidant, from being oxidized. In contrast, black and oolong leaves are made from fermented leaves and so EGCG is converted into other compounds, which are effective in preventing and fighting various diseases.
Clinical trials indicate that green tea raises metabolic rates and speeds up fat oxidation. Green tea also raises thermo genesis (the rate at which calories are burnt) and hence increases energy expenditure. Green tea also increases endurance in exercise.
Source : www.articlecircle.com/health/medicinal-values-of-green-tea.html
