 GDM is described as glucose intolerance first recognised in pregnancy. Similar to T2D, GDM is also increasing at an alarming rate, attributed partly to increasing maternal age and body weight. The current estimate is around 4 of all pregnancy though this could increase to as much as 17 if the new IADPSG guidelines are implemented. Women who develop GDM are at 7-8 times higher risk of T2D13 and the children born to them are at higher risk of developing T2D, abdominal obesity and metabolic syndrome later in life thus increasing their risk of CVD in adulthood. Though the exact etiological processes of such increased risk not clear, some of these effects could act through epigenetic mechanisms intra-uterine programming. 