Malnutrition or anemia during pregnancy, or trace elements such as folic acid, zinc, copper and manganese in early pregnancy may hinder the maturation of the fetus’ brain and other tissues and organs, further damaging the central nervous system and leading to cerebral palsy. Therefore, from the beginning of pregnancy, pregnant women should ensure the basic daily supply of calories and try to take a balanced and reasonable diet to maintain the nutritional balance of the internal environment and ensure the health of mother and child. Folic acid is involved in the synthesis and conversion of purine and pyrimidine nucleotides in the body and plays an important role in the production of nucleic acids (ribonucleic acid and deoxyribonucleic acid), which are necessary for the body to use sugar and amino acids. Inadequate intake of folic acid by pregnant women not only affects the length and weight of the fetus, but may also cause anemia in the newborn baby and, more seriously, lead to fetal malformations, especially neural tube abnormalities such as neural tube closure, anencephaly and spina bifida. Foods with high folic acid content include: plant foods such as spinach, celery, cauliflower, potatoes, lettuce, etc.; fruits such as pears, oranges, chanterelles, lemons, etc.; nuts and soybeans, animal liver, kidneys, eggs, fish, etc. ②Zinc can promote fetal growth and tissue regeneration, promote appetite of pregnant mothers, enhance immune function, promote vitamin A metabolism, and participate in the composition of many important enzymes in the body and other physiological functions. Zinc maintains and sustains the replication of immune response cells. Zinc deficiency in pregnant women may increase the number of complications during pregnancy and delivery, and increase the likelihood of fetal asphyxia during delivery, causing lack of oxygen and blood in the brain tissue cells of the newly born baby, which may affect the future brain development of the baby and cause cerebral palsy in severe cases. The main food source of zinc is animal food, such as animal liver, meat, seafood, etc. Oysters in particular have the highest zinc content. ③Many studies have proved that the lack of B vitamins in pregnant women can cause mental disorders in the fetus, which is prone to crying, restlessness and irritability after birth, and can also cause symptoms such as weakened gastrointestinal motility, constipation, reduced secretion of digestive juices and loss of appetite, serious neurological disorders, and accelerate the early pregnancy reaction of pregnant women, making the maternal absorption of nutrients worse and causing nutritional deficiencies in all aspects of the fetus, thus seriously The B vitamins include vitamin B1, vitamin B2, vitamin B6, vitamin B12, niacin, folic acid, pantothenic acid, choline, etc. Among them, mixed grains, dry yeast, hard fruits, animal offal, eggs and lean pork are good sources of vitamin B1; liver, kidney, heart, egg yolk, eel, milk, mushroom and purple cabbage are high in vitamin B2; foods rich in vitamin B6 include egg yolk, meat, fish, milk, whole grains, cabbage and beans.