Green tea, believed to have originated from china have been used for medicinal purpose for thousands of years ago. Green tea has recently become more widespread in all over the world. Green tea extracts is now used in various products ranging from beverages, dietary supplements, health foods and cosmetics. Green tea is made from the leaves of Camellia sinensis. The processing of green tea does not involve fermentation, as a result, green tea retain larger quantity of its antioxidants and polyphenols. This substances are responsible for green tea being a beneficial tea to human health.
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* Weight loss
Green tea can be very effective in both the prevention and reduction of weight gain. It increases the rate at which fat is burned in the body. The rate at which the body turns food into calories is as a result of the polyphenol. And this therefore increases metabolism.
Drinking green tea can regulate the glucose level in the body thereby slowing the rise of blood sugar after a meal. It improves the usage of isulin in the body to prevent cravings for junk foods.
* Heart Disease
Green tea can protect the lining of blood vessels, and can make them able to withstand fluctuation in blood pressure. Green tea acts as dilators so they protect against the formation of clots, which are the primary cause of heart attacks. It also has ability to lower blood cholesterol, to burn harmful fats (harmful LDL cholesterol) preventing them from laying stagnant in the blood stream and ateries.
Green tea has the potential to fight many forms of cancer. It can reduce the risk of certain cancers like esophageal, stomach, pancreatic, esophageal, prostate and colorectal cancer. Without destroying the healthy tissues around them, green tea can kill cancer cells.
* Dental caries
The antioxidant "catechin" in green tea is antibacterial and can be effective against bacteria found in the mouth. It has been proven to have inhibitory effect on Streptococcus mutans which causes tooth decay. Regular consumption of green tea may have similar inhibitory effects on other harmful microbes found in the mouth.
Green tea may prevent skin damage and wrinkling. It can also help delay the signs of aging, This is because of its antioxidant and anti-inflammatory activities. Topical application of green tea can reduce sun damage.
To sum up, green tea is also used for other medical conditions which include:
* Rheumatoid arthritis
* Impaired immune function
* Alzheimer's disease
* Parkinson's disease
* Liver problem
* Digestive disorders such as Crohn's disease and ulcerative colitis
* Neuronal cell protection
* Hangover prevention
* Controlling blood pressure
Any wonder an ancient Chineese proverbs says "Better to be deprived of food for three days, than tea for one."
Warning: Green tea may have negative side effect. It may cause insomnia due to the fact that it contains caffeine. Although the caffeine content of green tea is far less than caffeine in coffee.