Tea contains iron, zinc and other trace elements, modern research shows that iron is an essential raw material for fetal hematopoiesis, zinc can promote fetal brain tissue development. Therefore, some people believe that maternal and lactating women should drink more tea. In fact, this understanding is more one-sided. There are many disadvantages for mothers to drink tea.
Tea contains caffeine, which may affect fetal development. According to the study, women’s ability to clear the body during pregnancy is greatly reduced. Long-term consumption of strong tea can easily lead to caffeine savings. Excessive caffeine can easily enter the fetus through the placenta, causing toxic effects on the fetus, such as causing fetal intrauterine growth retardation, birth weight loss, severe can also lead to congenital malformations. At the same time, caffeine is a stimulant that can cause excessive excitation of the mother's central nervous system, rapid heartbeat, high blood pressure, and insomnia. Moreover, tea also contains an active ingredient theophylline, it will produce a strong diuretic effect, increase the mother's burden on the heart and kidney, easy to induce complications such as gestosis.
Pregnancy women often have varying degrees of anemia, and need to add a lot of iron, and tea contains a large amount of tannic acid, can combine with iron to form insoluble substances, thereby hindering the intestinal absorption of iron, aggravate anemia, but also cause Reduced fetal iron reserves make infants born more susceptible to iron deficiency anemia. For lactating women, tannic acid in tea has astringent effect, which will reduce the secretion of milk.
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