Reparto (20)
Gary TaubesSelf / Investigative Science Journalist / Author
Nina TeicholzSelf / Investigative Science Journalist / AuthorAncel KeysSelf (Archival footage) / Physiologist
Tim NoakesSelf / Scientist / Author / Professor Emerita
Mark HymanSelf / Narrator / Nutritionist / Functional Medicine Physician
Bret ScherSelf / CardiologistSarah HallbergSelf / Obesity SpecialistZoe HarcombeSelf / Obesity ResearcherSalim YusufSelf / Cardiologist
Robert LustigSelf / Pediatric EndocrinologistJason FungSelf / Diabetes Specialist
Bill MaherSelf (Archival footage) / Comedian
Eric WestmanSelf / Obesity SpecialistJonny BowdenSelf / Certified Nutritionist
Dwight D. EisenhowerSelf (Archival footage) / PresidentAlyssa GallagherSelf / Certified Diabetes EducatorBrian GaudetteSelf / US Army PilotBrian LenzkesSelf / Internal Medicine PhysicianDoug ReynoldsSelf / Founder and CEO, LowCarbUSADave AspreySelf / Founder, Bulletproof