Thomas Campbell, MD, is an instructor of clinical family medicine at the University of Rochester School of Medicine and Dentistry. He coauthored <i>The China Study</i>, which sold more than a million copies and inspired the 2011 documentary <i>Forks over Knives.</i> He also is director of the T. Colin Campbell Center for Nutrition Studies, a nonprofit organization in Ithaca, New York, which promotes optimal nutrition through science-based education, advocacy, and research in partnership with eCornell, Cornell University's online course provider. He lives in Rochester, NY.