The diet in the early stage of pregnancy is still light, eat more vegetables and fruits, moderate supplementation of high-quality protein, such as fish, shrimp, soy products, eggs, avoid eating greasy food, avoid eating raw, cold, spicy food, do eat less and more meals. It is recommended to supplement folic acid, pregnant women have a high demand for folic acid, if the lack of folic acid will cause malformations in fetal neural tube development, so it is important to supplement folic acid, generally can be supplemented with 0.4-0.8mg per day. the correct way to take folic acid, should be eaten from the first trimester to the second trimester of pregnancy. The right amount of DHA supplementation, because the early stage of pregnancy is the golden time for the baby’s brain development, at this time to supplement DHA can help the baby’s brain development perfect.