His unprecedented 23-year career and 22 All-Star selections were only possible by an ever-improving regimen of diet, exercise and cutting-edge technology.

How far would you go to be the very best in your line of work? For LeBron James, arguably the greatest basketball player of all time, the answer has always been as far as possible. LeBronhas been famously diligent about his fitness and the way he takes care of his body.

LeBron James already owns a résumé that makes legends sweat, but here’s the twist: even eight-time Mr. Olympia Ronnie Coleman is impressed. Not for rings or records, but for the King’s freakish, bodybuilder-level physique.