Figure 3C,D show that the influences of MSP1–MSP18 on the TG and TC contents in the FFA-induced NAFLD model of HepG2 cells and the TG and TC contents in 1.0 mM FFA-treated HepG2 cells were significantly increased by 2.23 and 0.77 times compared with the blank control group (p < 0.001). Here, ATAD1 is linked to metabolic dysfunction-associated steatotic liver disease.