After 14 weeks of pregnancy, it is recommended to increase the intake of meat, eggs and milk, because after 14 weeks of pregnancy, the nutrition required by both mother and child is gradually increasing, and a reasonable diet should be carried out. After 14 weeks of pregnancy, the growth of the fetus is accelerated and the required nutrition is also increasing rapidly. On the basis of the original pre-pregnancy diet, the intake of protein and meat should be increased, the amount of milk can be appropriately increased, folic acid should be supplemented, some green leafy vegetables should be consumed every day, iodized salt should be insisted on every day, and sea food rich in iodine, such as kelp and nori, should be eaten frequently. If possible, it is recommended to consume deep-sea fish 2-3 times a week to provide nutrition for the fetal brain development. If conditions allow, it is recommended to use a pregnancy-specific multivitamin with proper DHA supplementation to promote fetal development.