As expected, more women with type 2 DM used insulin during the intervention (90.9% versus 31.4%, P < 0.001) and with higher doses (41.02 ± 21.9 u/day versus 25.65 ± 19.36 u/day, P = 0.030) compared to women with GDM; however, no differences were observed by study groups in either type of DM. This evidence concerns the gene INS and gestational diabetes.