Diabetes causes serious affects to health including clinical signs as weight gain and increase food intake. Feed intake and body weight in diabetic control animals increased and in metformin or metformin in combination with cinnamon decreased significantly. Kidney tissues of diabetic control animals showed highly altered histological structure, disruption of glomerulus, vascular pole degeneration, Necrosis of collecting ducts and tubules, expansion of mesangial cells etc., as compared to non-diabetic control animals. Diabetes resulted in weight gain due to increased food intake, suggesting...