The rate of congenital anomalies, as well as morbidity and mortality of both the mother and fetus, is increased in diabetic pregnancy. Oxidative stress (OS) has been implicated in these effects because of the beneficial effects of several antioxidants in diabetic embryopathy. In the present study, we assessed attenuation of maternal and fetal OS and diabetic embryopathy by Ipomoea aquatica Forsk. (Convolvulaceae).