Can you drink strong tea and coffee while breastfeeding?

Patient's question:

Mother drinks strong tea, will breastfeeding be affected, for example, be excited and not sleep

Doctor's answer:

Hello, it's best not to drink it! Since the fetus's liver is not yet mature, it cannot metabolize caffeine quickly. Caffeine will accelerate the fetal heart rate and metabolic rate, which can have a negative impact on the fetus. Additionally, caffeine can reduce the speed of maternal blood flow to the uterus, decreasing the amount of oxygen and nutrients supplied to the fetus and affecting its development.
Furthermore, caffeine has a diuretic effect, making it more inconvenient for expectant mothers who are already experiencing frequent urination. It can also cause calcium loss through the urinary tract and affect iron absorption, leading to numerous drawbacks!
Excessive caffeine consumption during pregnancy can lead to gestational hypertension syndrome. This is a disease unique to pregnant women, characterized by edema, high blood pressure, and proteinuria. If not promptly treated, it can endanger both the mother and the fetus. Even drinking just a few cups of coffee daily can raise blood pressure. Therefore, pregnant women should avoid drinking coffee.
Moreover, coffee consumption increases the risk of heart disease and hypertension and can lead to addiction. It is clear that, for the sake of healthy reproduction and disease prevention, women should not consume coffee in large quantities or over a long period.