Pregnant women need to eat a variety of nutritious foods during pregnancy, take folic acid supplements in the early stages of pregnancy, and start taking calcium and iron supplements in the middle of pregnancy. Pregnant women need to ensure the nutrition of themselves and their fetuses during pregnancy, and increase their daily nutritional supplements. Diet should be light, easy to digest, nutritious food, meat and vegetables, regular diet. Protein-rich foods such as meat, eggs and dairy can be consumed, along with fresh vegetables at each meal. Some seasonal fruits can be consumed between meals. Folic acid supplements are needed in early pregnancy to prevent neural tube malformations. Starting from the middle of pregnancy, the demand of the fetus for calcium and iron gradually increases, and only obtaining them from food can no longer meet the needs of fetal growth, so you need to take extra supplements such as calcium and iron.