“…The risk allele (“A”) of the FTO‐ rs9939609 polymorphism is associated with increased odds of being either overweight or obese (Celis‐Morales et al, ; Emond et al, ; Frayling et al, ; Liu et al, ; Lopez‐Bermejo et al, ; Oyeyemi et al, ; Peng et al, ; Ramos et al, ; Yang et al, ). Studies on pregnant women suggest a positive association of the FTO ‐rs9939609 AA genotype with high pre‐pregnancy weight (Lawlor et al, ; Martins et al, ) and pre‐pregnancy BMI (Lawlor et al, ; Martins et al, ; Wehby and von Hinke Kessler Scholder, ), maternal obesity (Wehby and von Hinke Kessler Scholder, ), and excessive gestational weight gain (GWG) (Groth and Morrison‐Beedy, ). Nevertheless, to the best of our knowledge, there are no studies evaluating the association of FTO gene polymorphisms with the reproductive transition from the pre‐pregnancy period to 4 years after pregnancy.…”