Special grade green tea is a kind of tea with the largest output and the most extensive drinking in China. It is made of the new leaves or buds of tea trees by the process of killing, shaping and drying. Because green tea has not been fermented, it retains more nutrients, including tea polyphenols, catechins, chlorophyll, caffeine, amino acids, vitamins and other nutrients. Green tea has the following functions:
1. To prevent cancer, tea polyphenols in green tea can block the synthesis of carcinogens such as nitrosamine in the body, kill cancer cells and improve the body's immunity, and tea polyphenols in green tea have a positive effect on the prevention of cancer such as gastric cancer and colorectal cancer;
2. The tea polyphenols in green tea can inhibit and kill the pathogenic bacteria and virus;
3. In addition, catechol in green tea can remove free radicals, protect cell membrane and delay skin aging;
4. Promote digestion, caffeine in green tea can improve the secretion of gastric juice and help digestion;
5. Refreshing, caffeine in green tea can stimulate the central nervous system of the human body, increase the excitation process of the cerebral cortex, have the effect of refreshing and refreshing, and also have a certain effect of relieving migraine;
6. Green tea itself is low in calories and rich in vitamin C, which can reduce the accumulation of body fat and achieve the purpose of reducing weight;
7. In addition, vitamin C in green tea plays a positive role in reducing the turbidity of the eye crystal, reducing eye diseases and protecting the eyes.
General people can drink green tea, but we should pay attention to people with cold stomach can not drink or drink less, to avoid aggravating stomach discomfort. Iron deficiency anemia and people taking iron supplements are not suitable for drinking, because green tea may affect the absorption of iron. Don't drink green tea when it is first brewed, because the first brewed tea may contain impurities or unclean things, such as dust. Do not add sugar when drinking green tea, green tea is good for health, but if the effect of drinking sugar is not good, it will lead to obesity.