Prediabetes is a state between diabetes and normoglycemia, and is considered a necessary stage of diabetes and an early warning sign of diabetes. Specifically, it is a state in which postprandial blood glucose is between 7.8mmol/L and 11.1mmol/L (i.e. low glucose tolerance), or fasting blood glucose is between 6.1mmol/L and 7.0mmol/L (i.e. impaired fasting blood glucose). You must eat dinner the day before the test and not eat on the morning of the test, and you must not have a fever or cold. Fasting blood glucose is checked first, then glucose water or starch food is taken orally under the doctor’s instruction, and then blood glucose is measured two hours later, i.e. two hours after meal. If one of the fasting blood glucose and two-hour postprandial blood glucose reaches the range of pre-diabetes, it should be rechecked, and if the result is the same, it can be confirmed as pre-diabetes. If fasting blood glucose exceeds the maximum normal value of 6.1 mmol/L and is lower than the diagnostic standard of 7 mmol/L for diabetes, it is impaired fasting blood glucose; if two-hour postprandial blood glucose exceeds the maximum normal blood glucose value of 7.8 mmol/L and is lower than the diagnostic standard of 11.1 mmol/L for diabetes, it is impaired glucose tolerance. Both of these conditions are pre-diabetes, suggesting that the patient has insulin resistance or islet cell function defects, and needs early intervention through diet and exercise to bring blood sugar back to normal; otherwise, high blood sugar will further exacerbate insulin resistance or islet cell function defects, aggravating abnormal glucose metabolism, which may eventually develop into true diabetes. Pre-diabetes can be prevented and treated. People in prediabetes can prevent the condition from developing into type 2 diabetes by changing their diet and increasing physical activity. People who are pre-diabetic can even get their blood sugar levels back to normal. If you are diagnosed with prediabetes, you should actively start interventions such as diet and exercise, just as people with diabetes do. 1, change bad eating habits, eat less soda, French fries and other high-calorie drinks and food, reduce the intake of rice, steamed buns and other staple foods, and eat more green vegetables. 2, moderate exercise. Start with light activity and gradually increase the amount of activity according to the tolerance of the individual. 3.Actively treat hypertension, hyperlipidemia, etc. 4.. If diet and exercise interventions are not effective, appropriate glucose-lowering drugs must be selected for treatment under the guidance of a doctor. Research shows that most people with pre-diabetes can avoid the occurrence of diabetes through timely and reasonable interventions such as diet and exercise. There are many cases that show that patients can stop the progression of pre-diabetes or even reverse it by consuming a healthy diet and adhering to good daily habits. In a large diabetes prevention study of people with high risk factors for type 2 diabetes (including impaired glucose tolerance), it was found that even modest changes in their lifestyles could make a big difference in preventing diabetes and reversing prediabetes in some people. People who participated in the study lost 5-7% of their body weight with 30 minutes of physical activity per day, while reducing their risk of developing type 2 diabetes by 58%. If you have pre-diabetes, losing excess weight through proper diet and exercise can improve your body’s ability to use insulin and use glucose more efficiently. A dietitian can help patients tailor an eating plan. In addition, an individualized diet or exercise program should be discussed with one’s primary care physician before proceeding with a health plan. Diet therapy is the primary treatment for diabetes. A reasonably controlled diet can reduce the burden on the pancreatic islets, correct metabolic disorders such as hyperglycemia and hyperlipidemia that have occurred, as well as reduce postprandial hyperglycemia, reduce the stimulation of pancreatic beta cells, help prevent and treat various acute complications, and improve overall health. Experts refer to exercise and diet as the “two cornerstones” of diabetes control, and only when the “cornerstones” are solid can drugs have their proper effect. It is clear that exercise is an important, even essential, part of the treatment of diabetes. Exercise has great benefits for diabetic patients. In recent years, many studies at home and abroad have confirmed that the use of pharmacological interventions based on diet and exercise therapy can be more effective in dealing with prediabetes. Especially for some people with low glucose tolerance, who cannot effectively lower blood sugar by changing their lifestyle, or who have difficulty changing their lifestyle for many years and cannot adhere to a healthy lifestyle for a long time, pharmacological interventions should be considered. Studies have shown that metformin can reduce the risk of the disease by 31%, and insulin sensitizers and acarbose can also intervene in prediabetes. In addition, some herbal medicines that benefit Qi, nourish Yin and invigorate blood can not only delay the conversion of prediabetes to diabetes, but also increase the conversion rate of prediabetics to normal.