FTO and diabetes mellitus: Such an interaction with diet might help explain the discrepancies in the published studies if those that did not find an association between the FTO rs9939609 polymorphism and diabetes risk [6,28-30] were enriched in subjects following a diet similar to high adherence to the MedDiet pattern, while studies that detected this association [13-17,21] dealt with populations with a less healthy dietary pattern, compatible with low adherence to the MedDiet.