In recent years, in clinical work, it has been found that more and more pregnant women, due to the lack of knowledge of reasonable nutrition and exercise during pregnancy, have an increased risk of rapid weight gain, overweight fetus at birth, metabolic diseases during pregnancy, hypertensive diseases during pregnancy, preterm delivery and even obstructed labor, as well as obesity and abnormal glucose metabolism during childhood and adulthood. In addition, if the nutrition during pregnancy is insufficient, the fetus intrauterine development is limited, low birth weight (less than 2500g), the occurrence of some chronic diseases in adulthood will also increase. Therefore, for the future health of the child should pay attention to reasonable nutrition during pregnancy to ensure the healthy growth of the fetus. So, how much do women eat every day during pregnancy? How to exercise reasonably? 1, dietary principles; is low energy, low fat, suitable for high-quality protein (such as fish, protein, soy products, chicken, milk, etc.) and complex carbohydrates such as cereals, increase fresh vegetables and fruits. The proportion of calories provided by carbohydrates, proteins and fats are 60-65%, 15-20% and 25% respectively. 2, healthy eating behavior: (1) each meal is not full, 7-8% can be; (2) do not overeat; (3) chew slowly and prolong the eating time; (4) select food, especially select low-fat food; (5) eat with small utensils to increase satisfaction; (6) three meals a day to ensure, do not skip breakfast, into the breakfast can reduce blood thickening, bile thickening and other risks, but also to avoid lunch eating Too much. 3, the progress of nutrition during pregnancy: our nutrition society proposes: in the early stage of pregnancy, that is, the beginning of the trimester, do not need to increase the extra calorie intake, keep the same as before pregnancy can be. “The embryonic development in this period does not need too many calories, but it needs rich vitamins and minerals, so you can eat more foods containing folic acid, or supplement multivitamins containing folic acid”. The recommended intake of fruits during early pregnancy is 100-200 grams per day. By mid- and late-pregnancy, the daily caloric intake can be increased by a discretionary 200 kcal. “That 200 kcal is also about the caloric equivalent of a couple of extra raw rice or two eggs or two apples, which is actually not much.” The recommended daily intake of fruit is 200-400 grams. Protein requires an average of 60-80 grams per day and 90 grams for twins, with two-thirds of animal protein and one-third of vegetable protein paired. Calcium supplementation from 16 weeks of pregnancy is 1,000 mg per day and 300 mg of iron. Fat needs an average of 60-80 grams per day. 4.Pregnancy weight gain: 12.5kg (12-16kg) during pregnancy.