출연진

• 

  Gary Taubes

  Self - Investigative Science Journalist / Author

• N

  Nina Teicholz

  Self - Investigative Science Journalist / Author

• A

  Ancel Keys

  Self (Archival footage) - Physiologist

• T

  Tim Noakes

  Self - Scientist / Author / Professor Emerita

• 

  Mark Hyman

  Self - Narrator / Nutritionist / Functional Medicine Physician