Known obesity‐related genes (Appendix Table S8; Chesi & Grant, 2015; Rouillard et al, 2016; Warner et al, 2021)) were not affected in the patient apart from FAT1 (FAT atypical cadherin 1) and WWOX (WW Domain Containing Oxidoreductase) (Appendix Fig S2). This evidence concerns the gene FAT1 and obesity due to melanocortin 4 receptor deficiency.