This research project studied the effect of ethanolic leaf extract of Dialium guineense Willd (Fabaceae) on oral glucose tolerance in mice and alloxan-induced diabetic female rats. The ethanolic leaf extract was prepared by marcerating 500g of the dried, milled leaves of D. guineense in 3L of 96% ethanol in a suitable sized plastic bucket/bowl (with cover) for five days with intermittent stirring (at least once a day) using a glass rod. Then the extract was filtered using Whatsman No.1 fil...