FABP1 and obesity due to melanocortin 4 receptor deficiency: The median values of L-FABP for each of the four groups were as follows: the MASLD group (9168 pg/mL, IQR 4809–25,620 pg/mL), the obesity group (7954 pg/mL, IQR 809–35,660 pg/mL), the control group (7620 pg/mL, IQR 2754–20,141 pg/mL), and the mixed group, where patients with MASLD and obesity were combined (13,573 pg/mL, IQR 809–35,660 pg/mL).