Diabetes is a disease that affects more than 100 million people in China. In addition, there is a large “reserve army” of people who have a high glycemic index but do not yet meet the criteria for diabetes. In our daily life, how can we detect the signs of diabetes and avoid becoming the “reserve army” of diabetes? Please remember the following points: 1. Postprandial blood glucose is the blood glucose value measured 2 hours after the first meal. In the early stage of diabetes, many patients’ performance is mainly based on the increase of postprandial blood glucose. But at present, physical examination or self-testing blood glucose is generally measured by fasting blood glucose, so this is a point that can be easily ignored. If fasting blood sugar is higher than 6.1 mmol/L and lower than 7.0 mmol/L or postprandial blood sugar is higher than 7.8 mmol/L and lower than 11.1 mmol/L, it is necessary to raise alert, and this part of the population is called pre-diabetic patients, which is imaginatively compared to the “reserve army” of diabetes. Studies have confirmed that 1/3 of the “reserve army” will return to normal later, 1/3 will “stay put” and 1/3 will progress to diabetes. A good dynamic observation of postprandial glucose can detect the first signs of diabetes at an early stage, so that effective and standardized diabetes management can be carried out. Diabetes is ultimately a lifestyle disease. What you eat and how you eat it directly affects the level of blood sugar, so the prevention and treatment of diabetes is not like other diseases, which are mainly controlled by drugs, but by self-management, with emphasis on scientific diet. Only a well-balanced diet can make diabetics healthier. But the modern diet is mostly high in oil, salt and fat, so in the process of food preparation, pay attention to reduce the use of salt, less fatty meat, less oil. In this way, not only is it beneficial to blood glucose, but also to blood pressure and lipid control have a positive promotion effect. 3, pre-pregnancy blood glucose check to remember Gestational diabetes is a special type of diabetes. If hyperglycemia is not effectively controlled during pregnancy, it will lead to an increased risk of recent complications (such as cesarean section, giant baby, difficult shoulder delivery, etc.) and long-term adverse outcomes for both mother and child. Expectant mothers must remember to have a blood glucose check before pregnancy In pregnancy diabetes control is more stringent than normal requirements. It is usually below 5.2 mmol/L fasting and below 6.3 mmol/L after meals. Once gestational diabetes is detected, early intervention should be done for the benefit of both mother and fetus.