Whilst the compositional differences between milk of mothers with and without GDM have been observed, namely for HM adiponectin, insulin, and ghrelin [32], it is not clear if and how these differences persist into the intakes of these components by the infants, as mothers with diabetes and GDM have a shorter breastfeeding duration and may have lower milk production [33,34,35]. This evidence concerns the gene ADIPOQ and gestational diabetes.