Fetus is small, pregnant women can through dietary diversity, food meat and vegetarian, coarse and fine with balanced to supplement the improvement, it is recommended to supplement the nutrition from the following aspects: 1, protein: Protein can enhance the pregnant woman’s own immunity, to maintain the health of the uterus, the placenta, the mammary glands, and is conducive to the development of the fetus. The main source of protein to eggs, duck eggs, quail eggs and other main. In addition, soybeans, deep-sea fish, lean meat, dairy products are very suitable for pregnant mothers to supplement protein; 2, fat: fat contains amino acids, which help the formation and regeneration of the fetal brain and nervous system. Can choose deep-sea fish, nuts, avocado, and most vegetables and seeds refined fats, like flaxseed oil or olive oil, while dairy products are also high-quality fats; 3, micronutrients: moderate supplementation of micronutrients can prevent anemia, intrauterine hypoxia, etc., the fetus’s intelligence is also helpful. Folic acid can be obtained from lettuce, spinach, carrots and other vegetables; calcium can be obtained from kelp, shrimp, nuts and other foods; iron can be obtained from beef and lamb, spinach, egg yolk and other foods. During pregnancy, it is important to maintain a relaxed mood, regular life, reasonable diet, appropriate activities, regular pregnancy checkups, etc. Avoid greasy and cold foods.