Selenium: The Cancer-Fighting Mineral They Don’t Talk About Enough"Studies show that supplementing with 200 mcg of selenium daily can significantly reduce the risk of several cancers—breast cancer by 82%, lung cancer by 30%, colon cancer by over 50%, and prostate cancer by over 60%.Dr. Joel Wallach even took this to the FDA, and after much resistance, they finally allowed qualified health claims linking selenium to cancer risk reduction—although they insist on disclaimers stating the evidence is