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Gary Taubes as Self - Investigative Science Journalist / Author |
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Nina Teicholz as Self - Investigative Science Journalist / Author |
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Ancel Keys as Self (Archival footage) - Physiologist |
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Tim Noakes as Self - Scientist / Author / Professor Emerita |
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Mark Hyman as Self - Narrator / Nutritionist / Functional Medicine Physician |
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Bret Scher as Self - Cardiologist |
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Sarah Hallberg as Self - Obesity Specialist |
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Zoe Harcombe as Self - Obesity Researcher |
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Salim Yusuf as Self - Cardiologist |
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Robert Lustig as Self - Pediatric Endocrinologist |
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Jason Fung as Self - Diabetes Specialist |
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Bill Maher as Self - Comedian (archive footage) |
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Eric Westman as Self - Obesity Specialist |
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Jonny Bowden as Self - Certified Nutritionist |
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Dwight D. Eisenhower as Self - President (archive footage) |
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Alyssa Gallagher as Self - Certified Diabetes Educator |
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Brian Gaudette as Self - US Army Pilot |
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Brian Lenzkes as Self - Internal Medicine Physician |
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Doug Reynolds as Self - Founder and CEO, LowCarbUSA |
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Dave Asprey as Self - Founder, Bulletproof |
| Editing | Tim Kupsick | Editor |
| Production | Amanda Atkins | Executive Producer |
| Editing | Bill Krumm | Editor |
| Production | Tom Hadzor | Producer |
| Writing | Jennifer Isenhart | Writer |
| Directing | Jennifer Isenhart | Director |
