It was revealed that ALT, AST, and GGT were decreased by 50.4%, 37.2%, and 89.9%, respectively. The levels of TG, TC, and TNF-α reduced by 33.3%, 16.7%, and 39.8%, respectively, suggesting the potential value of quercetin in treating Non-alcoholic fatty liver disease (NAFLD). The gene discussed is GPT; the disease is metabolic dysfunction-associated steatotic liver disease.