Impaired glucose regulation (IGR) is closely related to overweight/obesity. By studying different dietary patterns (energy-limited diet vs. low-carbohydrate diet) and intensive lifestyle interventions combined with blood glucose monitoring, glucose regulation of overweight/obesity is affected. To improve the blood glucose and related metabolic indexes of patients with impaired (IGR), establish 1-2 clinical intervention programs for impaired glucose regulation.

Inclusion Criteria:

• Age 18-65 years old ② Fasting blood glucose is between 5.6-6.9 mmol/L (100-125mg/dL) or oral glucose tolerance test (OGTT) 2h plasma glucose (2h-PG) is 7.8-11.1 mmol/L (140-200 mg/dL)

  • 24 kg/m2 ≤ BMI ≤ 35 kg/m2

    • Those who are willing to accept assessment and sign informed consent.

Exclusion Criteria:

• Patients diagnosed with diabetes or undergoing diabetes treatment;

  • Receiving drugs or surgery for weight loss at present or in the past 3 months;

    • Receiving corticosteroid or thyroid hormone treatment;

      • Secondary obesity caused by endocrine, genetic, metabolic and central nervous system diseases;

        • Patients with abnormal liver function (alanine aminotransferase or/and aspartate aminotransferase exceeding the upper limit of normal value 3 times); patients with abnormal renal function (serum creatinine exceeding the upper limit of normal value); suffering from kidney disease and other diseases that need to control protein intake;

          • Diseases affecting the digestion and absorption of food (such as chronic diarrhea, constipation, severe gastrointestinal inflammation, active gastrointestinal ulcer, gastrointestinal resection, cholecystitis/cholecystectomy, etc.); ⑦ Suffering from cardiovascular and cerebrovascular diseases, grade 3 hypertension, chronic hepatitis, malignant tumors, anemia, mental illness and memory disorders, epilepsy and other diseases; ⑧ Suffering from infectious diseases such as active tuberculosis and AIDS; ⑨ During pregnancy or lactation; ⑩Patients with physical disabilities and clinicians think it is not suitable to participate in the study (for example, have a serious disease not included in the discharge criteria) or are unwilling to participate in this study.