Compared to the non-NAFLD group, NAFLD group patients had higher islet function index (FINS, FCP, 1h-CP, and 2h-CP), blood glucose index (FBG, 1hBG and 2hBG), liver function index (AST, ALT and GGT), renal function index (CR, UA, and GFR), and blood lipid index (TC and TG) and had lower ABG, UN, and DDi. The gene discussed is GPT; the disease is metabolic dysfunction-associated steatotic liver disease.