Pregnancy needs to maintain a balanced intake of nutrients in order to ensure that the baby’s brain development, during pregnancy can be supplemented through the appropriate amount of folic acid, DHA and so on. 1. Folic acid: Supplementation of folic acid during pregnancy is beneficial to reduce the incidence of neural tube defects and fetal malformations, you can take some medications containing folic acid under the guidance of a doctor, such as folic acid tablets and so on, and you can also consume some spinach, animal offal, and other exogenous supplementation of folic acid. 2. DHA: DHA has an important role in the development of the fetal brain, which is conducive to the development of fetal brain nerves, through the consumption of some deep-sea fish, or under the guidance of the doctor to take the relevant drugs for appropriate supplementation. Pregnant women should eat more food rich in protein during pregnancy, such as eggs, pork lean meat, soy products, milk and so on. It is also necessary to properly supplement shrimp, fish, pork liver, oats, walnuts, peanuts and other foods, eat more fresh vegetables and fruits, to ensure that the intake of food nutritionally balanced, to avoid a single nutrient. During pregnancy, you can standardize your diet under the guidance of your doctor to comprehensively replenish all kinds of nutrients for the development of the fetal organism.