Cast 20

1. 

   Gary Taubes

   Self - Investigative Science Journalist / Author

2. Nina Teicholz

   Self - Investigative Science Journalist / Author

3. Ancel Keys

   Self (Archival footage) - Physiologist

4. Tim Noakes

   Self - Scientist / Author / Professor Emerita

5. 

   Mark Hyman

   Self - Narrator / Nutritionist / Functional Medicine Physician

6. 

   Bret Scher

   Self - Cardiologist

7. Sarah Hallberg

   Self - Obesity Specialist

8. Zoe Harcombe

   Self - Obesity Researcher

9. Salim Yusuf

   Self - Cardiologist

10. 

    Robert Lustig

    Self - Pediatric Endocrinologist

11. Jason Fung

    Self - Diabetes Specialist

12. 

    Bill Maher

    Self - Comedian (archive footage)

13. 

    Eric Westman

    Self - Obesity Specialist

14. Jonny Bowden

    Self - Certified Nutritionist

15. 

    Dwight D. Eisenhower

    Self - President (archive footage)

16. Alyssa Gallagher

    Self - Certified Diabetes Educator

17. Brian Gaudette

    Self - US Army Pilot

18. Brian Lenzkes

    Self - Internal Medicine Physician

19. Doug Reynolds

    Self - Founder and CEO, LowCarbUSA

20. Dave Asprey

    Self - Founder, Bulletproof

Crew 6