LGALS3 and obesity due to melanocortin 4 receptor deficiency: Initially, gal-3 concentrations were significantly higher in the group with class III obesity (17.6 ± 4.2 vs. 14.1 ± 3.0 ng/mL; p < 0.05) and presented a positive correlation with BMI (r = 0.375; p < 0.001).