Gary Taubes
饰 Self - Investigative Science Journalist / Author
Nina Teicholz
饰 Self - Investigative Science Journalist / Author
Ancel Keys
饰 Self (Archival footage) - Physiologist
Tim Noakes
饰 Self - Scientist / Author / Professor Emerita
Mark Hyman
饰 Self - Narrator / Nutritionist / Functional Medicine Physician
Bret Scher
饰 Self - Cardiologist
Sarah Hallberg
饰 Self - Obesity Specialist
Zoe Harcombe
饰 Self - Obesity Researcher
Salim Yusuf
饰 Self - Cardiologist
Robert Lustig
饰 Self - Pediatric Endocrinologist
Jason Fung
饰 Self - Diabetes Specialist
比尔·马厄
饰 Self - Comedian (archive footage)
Eric Westman
饰 Self - Obesity Specialist
Jonny Bowden
饰 Self - Certified Nutritionist
Dwight D. Eisenhower
饰 Self - President (archive footage)
Alyssa Gallagher
饰 Self - Certified Diabetes Educator
Brian Gaudette
饰 Self - US Army Pilot
Brian Lenzkes
饰 Self - Internal Medicine Physician
Doug Reynolds
饰 Self - Founder and CEO, LowCarbUSA
Dave Asprey
饰 Self - Founder, Bulletproof
