Taking folic acid can aggravate pregnancy vomiting because folic acid can stimulate the stomach and lead to mild nausea and vomiting. This situation can be changed to taking it after meals, which can reduce the symptoms of nausea and stomach irritation. If you have pregnancy reactions during pregnancy and show significant nausea and vomiting, taking folic acid can, in moderation, be staggered a little. The main purpose of folic acid supplementation is to prevent fetal malformations. Usually, pregnant women can eat fresh fruits and vegetables in moderation to supplement folic acid during pregnancy. If you feel that the pregnancy reaction is more serious, can not have food in the stomach memory, but also affect the absorption of nutrients in pregnant women, will affect the growth and development of the fetus, can be supplemented through diet.