Green tea is the largest and most widely drunk tea in China. It is picked from the new leaves or buds of tea trees and is made by such techniques as green-killing, reshaping and drying. Because Green Tea has not been fermented, it retains more nutrients, which contains tea polyphenols, Catechin, chlorophyll, caffeine, amino acids, vitamins and other nutrients. The role of green tea has the following aspects: 1, the prevention of cancer, Green Tea Polyphenols can block the synthesis of Nitrosamine and other carcinogens in the body, killing cancer cells and enhance the body's immunity, and Green Tea Polyphenols for gastric cancer, intestinal cancer and other cancer prevention has a positive role; 2, anti-inflammatory and antibacterial, green tea polyphenols for pathogens, viruses have an obvious inhibition and killing effect; 3, Delay Aging, green tea contains Ester polysaccharide and sucrose, can help the body resist radiation, avoid radiation damage; Green Tea Catechin can clear free radicals, protect cell membrane, delay skin aging;