Although several studies have reported that the serum ferritin is related to NAFLD, the specific mechanism remains unclear; Serum ferritin levels and ferritin/hepcidin ratio are significantly correlated with NAFLD in the Chinese population.14 Yan et al16 reported that the serum ferritin levels were an independent risk factor for NAFLD in middle-aged and older patients with type 2 diabetes. The gene discussed is HAMP; the disease is type 2 diabetes mellitus.