He's become one of Hollywood's most in-demand leading men since his star turn in last summer's blockbuster hit Guardians of the Galaxy.
This summer Chris Pratt leads the hugely anticipated Jurassic World, and his good looks have earned him millions of adoring fans around the world.
But in a new interview with Men's Health magazine, the 35-year-old hunk has revealed how he was forced to take action when he ballooned to 300Ibs just two years ago.
Chris stars in a new shoot for Men's Health, which sees him show off his rippling phsyique in a series of moody shots.