QUOTE : Chemopreventive agents can be classified into different subgroups based on which stage of cancer development they help to fight: Carcinogen blockers and antioxidants help prevent the initial triggering DNA mutation, and antiproliferatives work by keeping tumors from growing and spreading. Curcumin is special in that it appears to belong to all three groups, meaning it may potentially help prevent and/or arrest cancer cell growth.13