Gestational diabetes mellitus (GDM) is an abnormality of glucose metabolism that exists during pregnancy and is receiving increasing attention from obstetricians because it may cause a variety of complications such as ketoacidosis, macrosomia, hyperhydramnios, delayed fetal lung maturation, intrauterine distress, and other serious threats to the prognosis of mother and child. The awareness of GDM is gradually improving, which affects the gradual improvement of its treatment, and it should be said that we have conquered another hurdle for the majority of pregnant women. In the treatment of gestational diabetes, diet therapy is the first and the most effective, because most patients can achieve the purpose of blood sugar control through diet therapy. The essence of the dietary treatment of gestational diabetes is to ensure the intake and balance of necessary nutrients while limiting caloric intake in order to avoid excessive blood glucose and excessive fluctuations. The calculation of total calories should be based on the patient’s physical work intensity, gestational week, height, pre-pregnancy weight and weight gain during pregnancy, etc. For example, for a pregnant woman with moderate physical work intensity (most of them belong to this category), who is 1.60 meters tall and weighs 65 kg before pregnancy and is now 24 weeks pregnant, her standard weight is 160-105=55 kg, and her total calories are 55 kg×(30 -35)kcal/kg+200kcal=1850-2125kcal, which is a range, depending on the patient’s specific gestational week, pregnancy weight gain, blood sugar level, etc., to determine the final calorie value, maybe 1900kcal, maybe 2100kcal, which will have to be finely adjusted. Of the total calories, the proportion of carbohydrates is about 50-60%, protein about 20-30% and fats about 20-30%, which is an approximate proportion. Ultimately, it depends on food exchange. What do you mean by food exchange? When I first learned about food exchange, I thought it was a lot of work to eat a meal. After I understood it, I thought it was not difficult to understand. Every time I told my patients, I was worried that I would not understand it, but every time I finished, my patients said, “I understand! So relieved. In fact, the food exchange is a table with a lot of food varieties marked in different categories, followed by the corresponding weight, such as 25g of rice, 110g of potato, 25g of pork, 500g of watermelon, etc. This is called a food exchange, which means that 25g of rice and 500g of watermelon can provide the same amount of calories (about 90kcal), but note that the nutrient distribution is different. This tells us that if you do not want to eat this, you can eat the same, how much to eat look at the table to know. For example, if I do not eat pork, I can change to beef, not beef can change to chicken, and so on, so that the food can be richer, but you can not not eat pork, with watermelon to make up, this is not possible, because although the calorie, but the nutrients are biased, will affect the growth of the child. Therefore, the nutritional recipes in the pregnancy nutrition clinic software produced by Mu Kang Obstetrics and Gynecology are based on such a theory. Moreover, it is confirmed by the clinic that most GDM patients, after scientific dietary control, can achieve ideal and stable blood sugar, and the maternal weight gain slows down, while the fetal development rate can be maintained at a normal level, without the need for other additional treatment. A small number of patients with severe GDM, usually those with diabetes before pregnancy, still have unsatisfactory blood glucose after dietary control, and these patients may need further treatment, such as insulin therapy, as a separate issue. The diet for gestational diabetes is not only for GDM patients, but for normal pregnant women, if they can adjust their diet according to the nutritional recipes, it will also be very beneficial for the nutrition supply and weight control throughout the pregnancy. Therefore, the blogger believes that the pregnancy nutrition clinic should be widely applied among pregnant women, which is of great benefit.