Cast
Gary TaubesSelf - Investigative Science Journalist / Author
Nina TeicholzSelf - Investigative Science Journalist / Author- Ancel KeysSelf (Archival footage) - Physiologist
- Tim NoakesSelf - Scientist / Author / Professor Emerita
Mark HymanSelf - Narrator / Nutritionist / Functional Medicine Physician
Bret ScherSelf - Cardiologist- Sarah HallbergSelf - Obesity Specialist
- Zoe HarcombeSelf - Obesity Researcher
- Salim YusufSelf - Cardiologist
Robert LustigSelf - Pediatric Endocrinologist- Jason FungSelf - Diabetes Specialist
Bill MaherSelf - Comedian (archive footage)
Eric WestmanSelf - Obesity Specialist- Jonny BowdenSelf - Certified Nutritionist
Dwight D. EisenhowerSelf - President (archive footage)
