In addition, the serum KAL levels were higher in non-obese NAFLD patients than in matched healthy controls (Fig. 1f) and positively correlated with AST, ALT, and TG but not TC, LDL-C, and HDL-C (Fig. 1g-i, supplementary Fig. 1h-j, supplementary Table 2). Here, GPT is linked to metabolic dysfunction-associated steatotic liver disease.