How much green tea do you drink every day to have a healthy effect?
The main functional ingredient in green tea is catechin. Catechin, also called tea tannin and catechol, is a general term for flavanols in tea. Catechin has a variety of biological effects, such as antioxidant effect, reducing the risk of cardiovascular diseases, reducing the risk of tumor occurrence, etc.
Drinking green tea is good for health. The Reference Intake of Dietary Nutrients for Chinese Residents (2013) shows that the intake of catechins in green tea is different, and the health effects are also different:
- The antioxidant effect of catechin can only be observed when 250 mg of catechin is taken from tea every day.
- Intake of 400 mg catechin per day can reduce the risk factors of cardiovascular diseases such as body weight, blood sugar, blood pressure and blood lipid, thus reducing the risk of cardiovascular diseases.
- Intake of 600 mg catechins per day can reduce the risk of prostate cancer in men. However, studies have shown that tea drinking has no effect on gastric cancer and bladder cancer.
Each cup of green tea contains about 100 milligrams of catechin, so drinking at least 3 cups of green tea every day will have health effects on the body. It is worth noting that each cup of green tea contains about 2 grams of green tea, green tea should not be repeatedly brewed, and it is recommended to replace the tea after twice brewing.