FTO and obesity due to melanocortin 4 receptor deficiency: Information with more consistency shows that FTO genetic variants are associated with pregestational status, as shown in a study carried out on 205 Turkish adult women; this study reported that the FTO AA genotype was associated with a risk of pre-pregnancy overweight/obesity (OR = 1.43, 95% CI [1.25–3.4], p = 0.035).