The current research investigated the nutritional value of the Moringa oleifera leaves Four diets, different in their composition were used on sixteen male albino rats (n=4). Commercial vitamins and minerals premix (75.0 g) were used solely in diet 1; diet 2 contained 37.5 g of the vitamin-mineral premix and 37.5 g MOL. Diet 3 contained 19.0 g of vitamin-mineral premix and 56.0 g of MOL. Diet 4 contained only MOL (75.0 g) as the sole source of vitamins and minerals. Diets 1, 2, 3 and 4 were provided for groups A (control), B, C and D respectively. Nutritional evaluation of the Moringa oleifera leaves contained protein (28.23±0.02%), dry matter (25.56±05%), Calcium (723.01 ±0.11 mg), Magnesium (677.28±0.00 mg) and Zinc (214.51±0.02 mg). Concerning the respective diets on feed consumption, bodyweight gain and growth performance, results showed a significant decrease (p < 0.05) in dose-dependent manners compared with control (A). Groups C and D showed a significant decrease (p > 0.05) in the efficiency of feed conversion when compared to control. The organs of all the test groups showed no significant difference (p > 0.05) in weight compared to control. Conclusively, the study suggests the use of MOL may be needful only as a supplement, condiment or ingredient to enrich diets with essential vitamins and minerals but not for growth or bodyweight gain.