The Playbook
Performance nutrition, sourced.
Physician-written and physician-reviewed — every claim traced to the research. Two board-certified doctors on the topics that actually move an athlete forward.
Petersen's Playbook
Dr. Erik Petersen, DOJuly 15, 2026 · 5 min readCarlson's Corner
Dr. William Carlson, MDJuly 8, 2026 · 6 min read
Creatine for the High-School Athlete: What the Evidence Actually Says
It's the most-studied supplement in sports and the one parents worry about most. Here's the honest, evidence-based answer on safety, dosing, and whether your athlete needs it.
Dr. Erik Petersen, DOJuly 15, 2026 · 5 min readHow Much Protein Does a Growing Athlete Actually Need?
Forget the shaker-bottle marketing. The research points to a clear target — and to something most athletes get wrong: not the amount, but the distribution.
Dr. William Carlson, MDJuly 8, 2026 · 6 min read