The results from the assessment of serum antioxidant function showed that GLC-H and metformin improved the serum catalase (CAT) level and total antioxidant capacity (T-AOC) levels of NAFLD mice to a certain extent, indicating that GLC can increase the serum antioxidant capacity of NAFLD mice (Figure 3F,G). Here, CAT is linked to metabolic dysfunction-associated steatotic liver disease.