Jeff Nippard

Jeff Nippard treats bodybuilding like a science experiment, and it works: the Canadian natural bodybuilder builds every video around actual peer-reviewed research rather than gym-bro intuition. His push/pull/legs template has become the default program half of lifting YouTube is quietly running, which is the best compliment a coach can get — nobody credits him, they just do what he says. Around 5 million subscribers stick around for the 'fundamentals of hypertrophy' series and the muscle-science explainers that read the studies so you don't have to.