Whether the baby is smart or not is mainly determined by both congenital and acquired factors. Pregnant women can eat some fish during pregnancy to help the baby’s neurological development and physical growth, but it is not reliable to make the baby smart just by eating fish. Fish is very nutritious, can give pregnant women to supplement high-quality protein, especially deep-sea fish, but also has a certain role in reducing blood lipids, for pregnant women and babies have certain benefits. It is generally recommended that pregnant women eat 3-4 taels of lean meat every day and 2-3 times a week of deep-sea fish. 1, yellow croaker, scallops: rich in various vitamins, as well as calcium, phosphorus, iron, magnesium and other trace elements, which can help supplement the nutrients required by pregnant women and babies, and also contains high-quality unsaturated fatty acids, which can promote fetal brain development; 2, sardines: such deep-sea fish contain high levels of DHA, which can assist in fetal Brain cell development, appropriate consumption, to a certain extent, can avoid the fetus after birth due to abnormal neurodevelopment resulting in reduced intelligence; 3, cuttlefish: with the benefit of essence, spleen and other effects, appropriate consumption helps pregnant women nourish the body. However, it should be noted that cuttlefish contains high cholesterol, pregnant women should not eat too much to avoid complications during pregnancy; 4, sea bass: pregnant women eat sea bass properly, both to strengthen the body and blood, there is a certain role of the fetus. In addition, bass contains a high proportion of unsaturated fatty acids, which is beneficial to fetal brain development; 5, crucian carp: with high protein, low fat, can supplement the vitamins, trace elements, amino acids, etc. required by pregnant women and fetuses, which helps the development of the fetus. It is also good for the spleen and the spleen, and for the lactation during pregnancy, and for the lactation after delivery. When pregnant women eat fish, they need to pay attention to the way of cooking, try to use boiled or steamed, light diet, do not consume too much fat, usually also pay attention to rest, to maintain adequate sleep and balanced nutrition. However, it should be noted that some deep-sea fish contain mercury, such as square-headed fish, sailfish, etc. Mercury can enter the fetus through the placenta, which will not only affect the growth and development of the fetus, but can even cause some damage to the fetal brain development, and should be avoided.