Tocopherols,polyphenols,carotenoids,antocyanin et al.are known as antioxidants.Most attention has been paid for their antioxidant activity and related beneficially health effect.Some of these compounds also show other biological activities which is not always dependent on its antioxidant activity but its specific molecular structure.Interest in anti-obesity,anti-hyperlipemia,and anti-diabetic effects of some kinds of antioxidants are beyond that in their antioxidant activity.