After a woman is conceived, a comma-sized fertilized egg grows into a full-term child weighing about 3 kg, a weight increase of several hundred million times, which is one of the fastest growing stages in a person’s life and the most nutritionally demanding period. Therefore, the mother-to-be has to pay attention to good nutrition throughout pregnancy. The first thing you need to do is to take a look at the actual website. One, do not eat too little staple food: staple food is the body’s main source of energy. Rice, noodles, buns, etc. are rich in carbohydrates and can provide the body with the energy it needs every day. After the third month of pregnancy, in order to meet the needs of fetal growth and development, the daily intake of staple foods for pregnant women should be increased by about 50 grams. However, many mothers-to-be consciously eat more vegetables and side dishes in order to increase nutrition, but eat less staple foods, and some pregnant women even replace staple foods with fruits. If carbohydrates are consumed too little, insufficient total calories will cause excessive fat decomposition in the body and ketoacidosis. Generally speaking, in early pregnancy, the daily intake of staple foods should reach 200 grams to 300 grams, and in the middle and late pregnancy can reach 300 grams to 350 grams per day. Second, don’t eat too much fruit: many mothers-to-be think that fruit can supplement vitamins, good for the fetus, put eating fruit in the first place in the diet, eat a lot of fruit every day, too much fruit, postprandial blood sugar will rise, because most of the fruit sugar content are in about 10%, so pregnant women should not eat too much fruit every day, about 200 grams a day can be. The vitamin provided by fruit is mainly vitamin C. In order to effectively replenish vitamin C without increasing the intake of sugar, you may want to eat more vegetables rich in vitamin C. Third, don’t drink enough milk: after 3 months of pregnancy, the demand for calcium for pregnant women is 1200 mg per day. The main foods rich in calcium are: milk and dairy products, soy products, seafood and green leafy vegetables. Among them, milk and dairy products are the best food source of calcium. Each milliliter of fresh milk contains about 1 milligram of calcium, and pregnant women should drink about 500 milliliters of milk every day. They should also consume about 300 grams of green leafy vegetables, and then eat some soy products and seafood to meet their calcium needs during pregnancy. For those mothers-to-be who have picky and partial eating habits, especially those who eat little milk and vegetables, they should take some calcium tablets to meet the needs of fetal bone growth and development.