Top Cast
Gary Taubes
Self - Author
Robert Lustig
Self - Doctor of Pediatric Endocrinology
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Craig Wilcox
Self - Researcher, Okinawa Centenarian Study
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Alexis Gomez
Self - Former Patient of Dr. Lustig
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Cristin Kearns
Self - Dentist, Denver, Colorado
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Yoni Freedhoff M.D.
Self - University of Ottawa
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Jean-Marc Schwartz
Self - Biochemist
John Yudkin
Self (archive footage)
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Ancel Keys
Self (archive footage)
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Sami Inkinen
Self - Endurance Athlete
