Watch Generation Iron: Natty 4 Life

GENERATION IRON 4 explores the inner workings of professional natural bodybuilding in attempt to expose the truth behind the all natural claim of the sport. This next chapter in the flagship film series will explore the controversial world of professional natural bodybuilding alongside top pros competing for Natural Olympia in a league dedicated to ensuring all competitors are free of performance enhancing drugs. Can the league guarantee that these competitors are truly natural?

Generation Iron: Natty 4 Life is a 2020 documentary with a runtime of 1 hour and 48 minutes. It has received moderate reviews from critics and viewers, who have given it an IMDb score of 5.8.