This study investigated changes in some biochemical and histological parameters in male rats fed with an Ocimum gratissimum – supplemented diet for six months. Biochemical parameters studied include serum protein, cholesterol, lipid peroxidation, Glutathione-s-transferase, Superoxide dismutase, Alanine transaminase, Aspartate transaminase, alkaline phosphatase, haemoglobin and white blood…