Introduction: Today’s society, focus on eugenics, so, as long as the pregnancy is determined, the whole family began to give pregnant women supplemental nutrition, as the saying goes, “pregnancy but one person to eat, two people to absorb” is this really right? The more you eat, the better the nutrition, the healthier it is? In fact, a lot of pregnancy hypertension, diabetes, etc. are closely related to “eat”! Learn to balance the diet, to eat nutritious and scientific! Malnutrition during pregnancy can be divided into: too little nutritional intake during pregnancy – nutritional deficiency too much nutritional intake during pregnancy – nutritional excess consequences of malnutrition during pregnancy: 1, increase the risk of premature birth, low birth weight, birth defects 2, increase the risk of anemia during pregnancy, gestational Increased energy and nutrients during pregnancy to meet the needs of fetal growth and development and maternal gestation. The recommended intake of nutrients during pregnancy should be increased by more than 30%, including: vitamin A, D, calcium, calcium, iron, zinc, iodine, vitamin B2, B6, C and folic acid. The main points of diet in early pregnancy: light and palatable foods such as fresh vegetables and fruits, soybean products, fish, poultry, eggs and various cereal products should be the main food to ensure the quantity of food. In early pregnancy, ensure the daily intake of 150 grams of carbohydrates (about 200 grams of cereals) and continue to supplement 400 micrograms of folic acid daily until the whole pregnancy. Mid-pregnancy diet should: appropriately increase the intake of fish, poultry, eggs, lean meat and seafood, appropriately increase the intake of milk, eat iron-rich food, moderate physical activity, maintain the appropriate weight gain, quit smoking, abstain from alcohol and eat stimulating foods. Increase the intake of protein appropriately, and increase the daily intake of fish, poultry, eggs or lean meat by a total of 50-100 g. The preferred animal food is fish, and eat fish 2-3 times a week. Red blood cells increase relatively slowly and the incidence of anemia is high The iron reserves of the first 6 months of infancy also come from the iron stores of the embryonic period, so increase the intake of iron from mid-pregnancy Iron-rich foods include: animal liver and blood, lean meat, black fungus, etc. The absorption rate of iron from animal sources is high Increase the intake of vegetables and fruits rich in vitamin C, which can promote the absorption of iron Appropriate physical exercise Pregnant women should, according to their physical ability The diet for gestational hypertension: light diet with less salt, control of normal weight gain, calcium supplementation to reduce the incidence of gestational hypertension, how to limit salt in gestational hypertension: no more than 5 grams of salt throughout the day for mild hypertension, no more than 3 grams for moderate hypertension or swelling. In case of cardiac insufficiency or decreased renal function, salt restriction should be guided by the doctor. Salt restriction includes table salt, soy sauce, pickles, pickles, etc. 20 mg of soy sauce contains 3 g of salt. Energy ratio, can record daily meals Increase physical activity Smaller and more frequent meals Choose foods with low glycemic index, including coarse grains, mixed grains, mixed beans and fruits with acidic taste, such as: green beans, buckwheat, apples, grapefruit, cherries, etc.