A child’s smartness and high intelligence are mainly related to genetic factors, and there is no food that can make a baby smarter and more intelligent when consumed. Eating more fish and nuts during pregnancy is beneficial to the brain and nerve development of the fetus. Fish food is rich in DHA and lecithin, which can promote fetal brain development. It is recommended that pregnant women can eat more cod, yellowtail, tuna, sardines and other deep-sea fish, which can replenish DHA and promote the development of brain nerves. Also eat more nut foods, such as walnuts, peanuts, hazelnuts, sesame and other foods, rich in lecithin and DHA, can promote fetal brain nervous system development. Diet during pregnancy should pay attention to nutritional balance and diversification, diet, although it can not make the baby become smarter, high intelligence, but it is good for the brain neurodevelopment.