In recent years, I often encounter young pregnant women who are referred to the gastroenterology department from the obstetrics and gynecology clinic, mostly at 3-5 months of gestational age, and who are found to have elevated transaminases, with ALT and AST ranging from 100U to 300U, while all hepatitis virus indicators are negative; through consultation, these pregnant women have in common that they are taking health supplements, either calcium supplements or folic acid or vitamin supplements. For these particular patients with abnormal liver function, I almost only explained in detail the possible causes and then advised them to definitely stop taking all health supplements and not to take liver-protective and enzyme-lowering drugs, and most of them returned to normal liver function after 2 weeks of rechecking! Therefore, it is advisable for those mothers-to-be not to be fooled by some advertisements or health care promoters in the society and take health care products easily, because health care products are not drugs, and the national testing is not as strict as that of drugs, and no one knows what excipients are added to them, and there is no way to know the effect on pregnant women or even on the fetus. As long as the mother-to-be can eat normally and ensure adequate nutrition of vitamins, proteins, carbohydrates, etc., she can. You should not take drugs lightly, and you should not take health supplements indiscriminately.