1. Antioxidant effect: green tea contains a large number of tea polyphenols, which can effectively resist free radicals and slow down cellular aging.

2. Weight loss and fat-lowering effect: catechins in green tea can promote fat metabolism, control weight and fat content.

3. Improve immunity: green tea is beneficial to the body's immune system, enhancing the body's own resistance.

4. Improve cardiovascular condition: Thea saponin in green tea can lower blood lipids and blood pressure, which helps prevent cardiovascular diseases.

5. Cancer prevention: the tea polyphenols in green tea can inhibit the growth of cancer cells, which has a certain effect on the prevention of cancer.

Taboos of green tea:

1. Pregnant women should not drink more green tea, drinking too much may lead to high catechin content in pregnant women, affecting the development of the fetus.

2. Theophylline content in green tea is high, and it is not suitable for people with stomach ulcers, neurasthenia, sleep problems and other diseases.

3. Because green tea contains a certain amount of caffeine, which can easily lead to insomnia, palpitations and other symptoms, it can not be selected too late and the central nervous system is not stable crowd drinking.

4. Because green tea contains vitamin C has a certain stimulating effect on the human body, sometimes cause mouth ulcers, tooth allergies and other symptoms.

5. Tea utensils, tea leaves and other materials are best cleaned before drinking, if there is dirt can trigger allergic reactions in the body, resulting in discomfort.