Gary Taubes Self - Author

Robert Lustig Self - Doctor of Pediatric Endocrinology

Craig Wilcox Self - Researcher, Okinawa Centenarian Study

Alexis Gomez Self - Former Patient of Dr. Lustig

Cristin Kearns Self - Dentist, Denver, Colorado

Yoni Freedhoff M.D. Self - University of Ottawa

Jean-Marc Schwartz Self - Biochemist

John Yudkin Self (archive footage)

Ancel Keys Self (archive footage)

Sami Inkinen Self - Endurance Athlete

Dr. John L. Sievenpiper Self - Researcher, St. Michael's Hospital, Toronto

Terry Dean Self - Heart and Stroke Foundation

Frank Lisciandro Self - Filmmaker

Sheldon Reiser Self - Researcher at the U.S. Department of Agriculture

Judith Hallfrisch Self - Nutritionist

Stan Glantz Self - Head of the Tobacco Research Unit, University of CA

Arya Sharma Self - Medical Director, Canadian Obesity Network

Kim Raine Self - Alberta University

Richard Ellis Self - McDonald's Canada

Laura Schmidt Self - Faculty of Medicine, University of California

Meredith Inkinen Self - Endurance Athlete