FAAH and obesity due to melanocortin 4 receptor deficiency: Sipe and colleagues (2005) [56] indicated the FAAH 385 A/A (P129T) missense polymorphism as a risk factor in overweight/obesity particularly in white and black subjects, whereas Monteleone et al. (2008) [57] and Yagin et al. (2019) [139] confirmed over-representations of the FAAH 385 A allele in overweight/obese in Caucasian and Iranian females, respectively.