Himself
David D. Perlmutter
Tim Noakes
Self
Andrea DiMauro
Yoni Freedhoff M.D.
Jeffery Gerber M.D.
Jacqueline Gjurgevich
Stephan Guyenet M.D.
Adele Hite MPH R.D.
Sami Inkinen
Meredith Loring
David L. Katz
Rick Lindquist
Andreas Eenfeldt
Marion Nestle
Jennifer Phelps M.D.
Marlene Schwartz PHD
Wendy Scinta M.D.
Mark Sisson
Christine Straley
Ronald Tamler M.D.
Melanie Warner
Brian Wansink M.D.
Narrator
Eric Carlsen
Jimmy Moore
Nurse
Gisela Carlsen
Dr. K. Lulis
Daniel Damiano
Elyssia Poland
Thomas Willis
Daniel Riffe
Gary Taubes
Lathe Poland
Jonathan Bailor
Jonny Bowden
Kashia Cave
Ann Cooper
Executive Producer
Director
Music
Sam Speakman
Associate Producer
Ramona Denton
Animation
Will Guy
Parish Vaidya
Vanessa Romero
Heather Juergensen
Tom Nikkola
Theron & Virgie Poland
Gustavo Wenzel
Neil Feldman
Michael Metcalf