GSTM1 and metabolic dysfunction-associated steatotic liver disease: Also, we did not observe a significant difference between overweight and non overweight patients with NAFLD regarding Hb (14.7 ± 1.6 vs. 15.1 ± 1.1 mg/dL; P = 0.328), serum ferritin (132.7 ± 61.8 vs. 118.7 ± 74.4 μg/dL; P = 0.269), gamma-glutamyltranspeptidase (44.3 ± 13.7 vs. 40.9±16.2 IU/L; P = 0.610) and serum albumin (4.5 ± 0.4 vs. 4.6 ± 0.5 mg/dL; P = 0.142).