As it is shown, lipid peroxidation increased with increasing the concentration of extracts. At 50 mg/ml concentration and after 96 h incubation, methanolic extract of Fajr and Tarem exhibited strong inhibition of lipid peroxidation (68.01% and 65.5%, respectively), and the lowest inhibition was observed in ethyl acetate extracts. These results suggest that rice bran may be a possible treatment for cardiovascular diseases, cholesterol lowering and other lipid peroxidation processes [15].