To further prove the improvement effect of 5-MIAA on NAFLD, we gavaged 5-MIAA to NAFLD mice induced by HFD for 8 weeks, and the results showed that 5-MIAA reduced the levels of serum TC, TG, and LDL-C (Figures 6A-C), hepatic ALT and AST (Figures 6D,E), and improved hepatic steatosis of NAFLD mice (Figure 6F). Here, GPT is linked to Hepatic steatosis.