Background
Obesity is one of today?s major public health problems in both developed and developing countries. In 2005 there were around 400 million obese adults; this number is estimated to reach one billion by the year 2030 [1]. Reports from the Middle East [2] and Saudi Arabia [3] suggested similar burden of obesity epidemic. The prevalence of overweight and obesity is higher among women, with an estimated prevalence of 63% in the reproductive age group [3] and more than 50% among pregnant women [4]. Obesity in pregnancy is a recognized risk factor for many maternal and neonatal adverse outcomes including increased rate of cesarean section (CS), macrosomia, preeclampsia and gestational diabetes (GDM) [5, 6, 7].