A previous report revealed that children of mothers with obesity tend to be 2.6 times more obese than children with nonobese mothers.[29] Weight gain during pregnancy has been reported to affect maternal insulin resistance and hormonal secretion in the womb and obesity in postnatal infants.[20] Therefore, it is important to provide guidance about appropriate weights during pregnancy for the prevention of childhood obesity or maternal lifestyles for the acquisition of appropriate lifestyle since early childhood. This evidence concerns the gene INS and obesity disorder.