A single-center, randomized, controlled study on the reversal of pre-diabetes by Traditional Chinese Medicine fasting therapy

INTERVENTION: Traditional Chinese Medicine fasting therapy (TCM‐FT):Traditional Chinese Medicine fasting therapy;Normal lifestyle control (CT):Normal lifestyle intervention; CONDITION: Pre‐daibetes PRIMARY OUTCOME: Oral glucose tolerance test, OGTT;Islet function;Weight;BMI; SECONDARY OUTCOME: waist circumference;hip circumference;lipid profile;liver/pancreas lipid contents; INCLUSION CRITERIA: 1. Aged 20‐65 years old; 2. Overweight/obesity defined as BMI >= 25 kg/m^2; 3. The heart, liver and kidney functions were normal; 4. Pre‐diabetes was diagnosed according to the criteria of Chinese Guidelines for the Prevention and Treatment of type 2 diabetes mellitus 2022 edition. 5. Not history of medication for PDM; 6. Informed consent is obtained.