A plausible explanation for the results of the present work may be associated with the findings of Gupta et al. (2011) who found that phytochemical analysis of M. oleifera revealed the presence of bioflavonoids, which are responsible for the stimulation of glucose uptake in peripheral tissues as well as regulation of the activity and or expression of the rate-limiting enzymes involved in carbohydrate metabolism. Moreover, the presence of these active principles in M. oleifera potentiate glucose-induced insulin secretion from the existing -cells or stimulate its release from the bound form, thus decreasing serum glucose levels in treated diabetic rats.