GPT and sarcopenia: Patients with sarcopenia had significantly lower albumin (30 vs. 38 g/L, p = 0.004) and vitamin D levels (16 vs. 32, p = 0.008) and higher bilirubin (1.9 vs. 1.1, p = 0.01), AST (67 vs. 46, p = 0.029), ALT (47.5 vs. 27, p = 0.025), and ferritin (49 vs. 35, p = 0.032) levels compared to those without sarcopenia (Table 4).