Bulking Up 40-Plus Pounds
Image Credit: Warner Brothers
It’s hard to imagine having to gain approximately 40 pounds, mainly muscle, to prepare for this film. He had to eat about 8,000 calories a day. To do that, Cooper had to eat about every 55 minutes.
He Used His Own Trainer
Image Credit: GC Images
Cooper had to work out about 4 hours a day, every day, for several months. He did not use any hormone or steroid supplements. His trainer was with him on a constant basis.
But, It Took More Than Just Bulking Up
Bradley Cooper really had to know what it felt like to be a Navy Seal, and specifically, Chris Kyle. He trained with real Seals, spending numerous hours at target practice. He also watched countless hours of Kyle, himself. Cooper utilized a vocal coach and learned Kyle’s mannerisms.