1. The supply of various nutrients should be adequate. The various nutrients contained in food are the material basis of good nutrition. If the intake of nutrients in the diet is insufficient, even the best diet will not be able to provide good nutrition. 2. Diversify food and avoid partiality. Each natural food has its own nutrient characteristics, and its nutrients will not be all-encompassing. Therefore, the nutrients we need every day should be taken from a variety of foods to ensure comprehensive nutrition. A partial diet is likely to omit or reduce the intake of a certain nutrient or a few nutrients. Therefore, we advocate diversification of food varieties. 3. Food should be light and not excessive in sugar, salt and oil. Sugar, salt and oil can also provide the nutrients we need. However, too much sugar, salt and oil are harmful. Excessive intake of sugar may lead to excessive weight gain and may induce high blood sugar during pregnancy. Excessive salt intake can aggravate edema in pregnancy and high blood pressure in pregnancy. Too much oil in the diet can likewise cause excessive weight gain and may lead to dyslipidemia. Therefore, you should choose a light diet rich in nutrients during pregnancy. 4, intake of adequate water. It is recommended that the best drinking water during pregnancy is mineral water or plain water. You can also drink some fresh fruit juice, but it should be controlled, not too much. 5, less food and more meals. Pregnancy is easier to hunger, so in addition to three main meals, it is best to have two to three additional meals, which can be arranged between brunch, lunch and dinner and bedtime. 6, fresh vegetables and fruits. For pregnant women and the fetus to provide vitamins, minerals and trace elements and dietary fiber. However, it should be noted that the amount of fruit should not be too much. Normal daily intake of pregnant women should not exceed half a pound. 7, eat less fast food and convenience food. Fast food and convenience food is characterized by easy to eat, time-saving, more suitable for business travel and other outdoor activities when the work of the busy situation to choose. However, the nutrients of these foods are relatively single, more fat, and sometimes contain preservatives, antioxidants and other food additives. So it is not very suitable for consumption during pregnancy. 8, pickled, preserved, waxy, lavender food, loose eggs should be eaten less. Pickled, waxed, fumigated food and made into loose eggs, etc. are a method of long-term preservation of food, and these foods have some special flavor, so it is very popular. This method of processing was even more significant in the days when there were no refrigerators. However, a lot of nutrients, especially vitamins, are lost during the processing of these foods, and some unhealthy substances may be generated. Therefore, it is best to minimize the consumption of such foods during pregnancy. 9, carbonated drinks and cola-type drinks should be used sparingly. Carbonated beverages are a kind of drinks made of chemical raw materials, not natural food. It contains flavoring, coloring and sugar or saccharin and other substances. Cola-type drinks contain high levels of phosphoric acid, sugar and caffeine, so they are not suitable for pregnant women to use. 10, animal liver. Animal liver is rich in nutrients, should eat 1 to 2 times a week, but do not eat too much to avoid overdose. 11, milk and dairy products. Milk and dairy products contain high-quality protein and good absorption rate of calcium, so should be daily intake of half a catty to a catty and a half. 12, no weight loss during pregnancy, do not drink strong tea, moderate coffee.