Inclusion Criteria:
* (1) Type 2 diabetes diagnosed according to WHO diagnostic criteria, age ≥ 18 years old, ≤ 70 years old, gender unlimited (2) Diagnosed with NAFLD according to the criteria of the "Guidelines for the Prevention and Treatment of Non alcoholic Fatty Liver Disease (2018 Updated Edition)" (3) Before screening, patients with type 2 diabetes who were treated with single or combined drugs of stable dose (except TZDs, SGLT2i, GLP-1RA, insulin and GKAs) for ≥ 8 weeks and had poor blood glucose control, 7% ≤ HbA1c ≤ 10% (4)BMI≥24 kg/m2 (5) Can understand the content and methods of this study and voluntarily sign an informed consent form
Exclusion Criteria:
* (1) Patients with diabetes other than type 2 diabetes, including type 1 diabetes and gestational diabetes (2) Acute diabetes complications such as diabetes ketosis or ketoacidosis, diabetes hypertonic state, diabetes lactic acidosis or serious chronic diabetes complications (3) Individuals with a history of recurrent urinary tract infections and/or genital infections (as determined by clinical physicians) (4) Alcoholic liver disease (alcohol consumption equivalent to less than 30 g/d for males and less than 20 g/d for females in the past two years) (5) Exclude other liver diseases, such as chronic hepatitis B, chronic hepatitis C, primary cholestatic cirrhosis, ballistic obstructive diseases, drug-induced liver damage, hemochromatosis, hepatolenticular deformation, autoimmune hepatitis (6) Combined cirrhosis, combined liver cancer, HIV positive, drug abuse (7) Drugs (tamoxifen, amiodarone, sodium valproate, methotrexate, glucocorticoid, etc.), total parenteral nutrition, inflammatory bowel disease, celiac disease, hypothyroidism, Cushing's syndrome, β - lipoprotein deficiency, lipoatrophic diabetes, Mauriac syndrome, and other special conditions leading to fatty liver (8) Serious trauma or acute infection that may affect blood glucose control occurred within 4 weeks (9) Individuals who have experienced decompensated heart failure (NYHA grades III and IV), unstable angina, stroke or transient ischemic attack, myocardial infarction, severe arrhythmia, or have undergone cardiac surgery or vascular reconstruction (including coronary artery bypass grafting or percutaneous coronary intervention) within 6 months (10) There are obvious blood system diseases (such as aplastic anemia, myelodysplastic syndrome) or any diseases that cause hemolysis or red blood cell instability (such as malaria, hemolytic anemia) (11) Individuals with severe chronic gastrointestinal diseases, or those who have received treatment that may affect drug absorption (such as gastrointestinal surgery) (12) Uncontrolled hyperthyroidism (13) Individuals with mental or neurological disorders who are unwilling to communicate or unable to fully understand and collaborate (14) Pregnant or lactating women (15) There are any laboratory test indicators that meet the following standards:
1. Alanine aminotransferase\>2.0 times ULN and/or aspartate aminotransferase\>2.0 times ULN and/or total bilirubin\>2.0 times ULN
2. Blood ketones\>ULN
3. eGFR \<30ml/min/1.73 m2； Note: The formula for calculating eGFR is CKD-EPI (which can be calculated within the WeChat mini program)
4. Blood creatine kinase\>3 times ULN (16) In addition to the above, the researchers have determined that patients who are not suitable to participate in this clinical trial
