Gary Taubes

~ as ~

Self - Author

Robert Lustig

~ as ~

Self - Doctor of Pediatric Endocrinology

Craig Wilcox

~ as ~

Self - Researcher, Okinawa Centenarian Study

Alexis Gomez

~ as ~

Self - Former Patient of Dr. Lustig

Cristin Kearns

~ as ~

Self - Dentist, Denver, Colorado

Yoni Freedhoff M.D.

~ as ~

Self - University of Ottawa

Jean-Marc Schwartz

~ as ~

Self - Biochemist

John Yudkin

~ as ~

Self (archive footage)

Ancel Keys

~ as ~

Self (archive footage)

Sami Inkinen

~ as ~

Self - Endurance Athlete