Jeff Nippard

The Canadian natural bodybuilder and sports science graduate who applies research directly to programming. 5M+ subscribers follow his "fundamentals of hypertrophy" series, beginner program reviews, and muscle science explainers that cite actual peer-reviewed studies. Jeff's push/pull/legs programs are among the most-run evidence-based routines on the internet. His 2026 content on AI-assisted training optimization puts him at the frontier of what's possible in personalized fitness content.