In the 2nd trimester of pregnancy, eat more high protein foods, vitamin-rich vegetables and fruits. In the first three months of pregnancy is the best period of fetal development, strengthen nutrition, supplement protein high food, such as eggs, beef, milk, walnuts, lean meat, bean products, is conducive to the development of fetal brain. The gestational sac has just implanted in the uterus development is not stable enough, to eat more food containing vitamin E, such as sesame seeds, walnuts, cabbage, peanuts, melon seeds, has the effect of preserving the fetus. Folic acid-rich foods can prevent fetal neurovascular malformations, most of these foods are present in dark green vegetables, which are easily destroyed during processing, and you need to take one oral folic acid tablet directly every day in early pregnancy.