Usually, the fetal brain begins to develop brain cells at 3 months of age, therefore, from 3 months until the birth of the fetus, pregnant women should have a proper fetal brain supplementation program. Fetal brain development is habitual throughout almost the entire pregnancy, with the fetal neural plate forming 16 days after conception. The fetal nervous system begins to develop rapidly from the third month, and the most rapid development of fetal brain function occurs in the late pregnancy. At the same time, the cerebellum, which controls limb movements, matures rapidly, increasing in size approximately 30-fold during the last 16 weeks. Since the last stage of pregnancy is the most critical for the full development of human cerebral cortex, pregnant women should take scientific brain supplements during the period from the third month to the birth of the fetus. Pregnant women are recommended to supplement their brain through diet, such as eating more nuts and foods containing vitamin A, such as walnuts, animal liver, kelp, fish, eggs, lean meat, black sesame, etc.