INS and obesity due to melanocortin 4 receptor deficiency: Previous studies have shown that MCFAs and coconut oil enhance insulin sensitivity,(21) and that capric acid (C10:0) improves insulin sensitivity and prevents obesity by regulating glucose homeostasis through glucagon-like peptide-1 secretion mediated by GPR84.(23) In the current study, we confirmed an increase in capric acid, suggested that these mechanisms might be related; however, further research is needed to elucidate the underlying pathways.