Tea contains more than 400 ingredients such as caffeine, tannins, tea polyphenols, proteins, carbohydrates, free amino acids, which contain vitamins, proteins, amino acids, mineral elements and other essential nutrients, and therefore has a certain health and medicinal value. Pregnant women should drink less tea, because tea contains tannic acid, which can precipitate heavy metals, which is not conducive to the absorption of calcium and iron, which in turn may lead to iron deficiency anemia during pregnancy. Tea also contains caffeine, caffeine has a stimulating effect, which may lead to insomnia, so that pregnant women and fetuses do not get a good rest. In addition, strong tea has a strong stimulation of the stomach and intestines, can inhibit gastric juice secretion, affect digestive function, but also make the central nervous system too excited, increasing the burden on the heart and kidneys, so pregnant women had better drink less tea or only drink light tea. If you really want to drink tea after pregnancy, you can choose to drink a small amount of green tea, green tea is rich in vitamins, pregnant women can drink in moderation to strengthen the heart and kidney function, promote blood circulation, prevent pregnancy edema, in addition, you can also drink rosehip tea, red raspberry leaves, which is rich in iron, with the role of eliminating anemia.