Generally pregnant women need to supplement calcium, protein, folic acid, iron and other nutrients. 1. Calcium: If a pregnant woman is deficient in calcium, it can lead to intrauterine growth retardation, low birth weight convulsions, and affect dental health. Pregnant women can also experience cramps, low back pain, fractures and other phenomena. You can eat more milk, shrimp and other foods, but also can use drugs for calcium supplements, such as calcium carbonate D3 tablets, calcium citrate tablets. 2. Protein: Protein is an important component of all cells and tissues in the human body. All the important components of the body need to have the participation of protein. You can choose lean meat, fish, shrimp, crab, shellfish, milk, eggs, etc. Nuts and dried beans and other plant foods are also rich sources of protein. 3. Folic acid: Eating folic acid is conducive to the normal growth and development of the fetus and reduces the occurrence of fetal malformations. Folic acid is involved in a variety of body metabolism, such as body methylation reaction. If folic acid deficiency is serious, it may lead to malnutrition anemia, fetal malformation and other consequences. You can eat oranges, strawberries, cherries and other fruits, but also oral medication folic acid tablets for treatment. 4. Iron: you can eat iron-rich foods to supplement, such as animal liver, lean meat, eggs and so on. In addition, pregnant women’s diet should be balanced nutrition, reasonable supplementation of a variety of nutrients, such as discomfort is recommended to go to the hospital in a timely manner.