There are no foods or medications that pregnant women can take to make their babies smart and have a high IQ. The baby’s intelligence is affected by many factors, including genetic factors, environmental factors and the nutritional status of the pregnant woman during pregnancy, and there is no food or drug that can make the baby smart IQ high. The main thing is the need to avoid toxic and harmful substances during fetal development to affect the development of the nervous system, pregnant women during pregnancy also need balanced nutrition to avoid affecting the development of the nervous system. DNA can be supplemented in moderation during pregnancy, which is beneficial to the development of the fetus, and DHA plays an important role in brain development and the establishment of cognitive level. Although pregnant women eat DHA does not make the baby smart IQ high, but for the development of the fetal brain nervous system during pregnancy still has a role. During pregnancy, it is recommended to have a reasonable diet, regular work and rest, and try to avoid exposure to toxic and harmful substances. Regular labor and delivery checkups are recommended to improve pregnancy-related checkups and assess the development of the fetus. If DHA supplementation is needed, it is recommended to take it under the guidance of a doctor.