1. Insomnia: Green tea contains theophylline and caffeine, and excessive drinking every day may aggravate insomnia symptoms.
2. Constipation: Green tea contains tannic acid, and excessive drinking every day may cause indigestion or constipation.
3. anemia? Tannic acid in green tea is combined with iron in the body. Excessive drinking every day may cause iron deficiency anemia, which is more likely to occur in girls during menstruation.
4. Calcium deficiency: oxalic acid in green tea will combine with calcium. Excessive drinking every day may lead to calcium malabsorption, and calcium deficiency during pregnancy may easily lead to fetal dysplasia.
Green tea has no direct harm to women's health. On the contrary, green tea is rich in various nutrients, such as vitamins, minerals, tea polyphenols, etc., which are helpful for antioxidation, prevention of cardiovascular diseases, and lowering blood sugar and cholesterol.
However, women should pay attention to the following points when drinking green tea:
1. Pregnant women and lactating women: During pregnancy and lactation, women should try to reduce the consumption of tea drinks, because caffeine and other components in tea will affect the neural development and sleep of the fetus or baby.
2. During menstruation: green tea contains caffeine and polyphenols. Excessive drinking may stimulate the uterus, leading to menorrhagia and making dysmenorrhea more serious.
3. Drinking time: It is best to drink green tea one hour after meals, because tea contains tannic acid, which will combine with protein in food after drinking, affecting the absorption effect of nutrients in food.
In a word, it is beneficial for healthy people to drink green tea in moderation, but it is necessary to adjust the amount and time of drinking according to their personal situation.