Regarding the association between adherence to the MedDiet pattern and T2DM, Abiemo et al. [33] reported that a greater consistency with a MedDiet style was cross-sectionally associated with lower serum insulin concentrations among non-diabetics and with lower blood glucose before adjustment for obesity but not with a lower incidence of DM. This evidence concerns the gene INS and obesity due to melanocortin 4 receptor deficiency.