We found no association between the four genetic loci (IL6 rs2069845, LEPR rs1137100, NAMPT rs3801266, and AMD1 rs2796749) and prevalence of obesity (corresponding to an adult BMI cut-off of 25 kg/m2) among Danish young men or children (Table 2). Here, NAMPT is linked to obesity due to melanocortin 4 receptor deficiency.