Vitamin D: The role of vitamin D in NAFLD pathogenesis has been widely discussed; in fact, its healthy effects on glycemic regulation, adiponectin levels, ROS production and intestinal microbiome balance has been already elaborated by various studies, especially by searching for a correlation between serum levels of this vitamin and the onset of metabolic liver pathology [73]. The gene discussed is ADIPOQ; the disease is metabolic dysfunction-associated steatotic liver disease.