Bradley Cooper ate 6,000 Calories per day to BUFF UP for his role
To prep for his role as Navy SEAL sniper Chris Kyle in the blockbuster movie American Sniper, Bradley Cooper took his physical transformation very seriously! Packing on 40 pounds of muscle, Cooper tells Men's Health he consumed an insane 6,000 calories a day — and had to be force-fed! — while getting into character. "I had to get to the point where I believed I was him," Cooper, 40, told the fitness magazine. "At 185 pounds, it would've been a joke....Chris wasn't ripped. He wasn't sinewy. He was just a bear." Cooper's pre-production journey wasn't all Twinkies and Oreos, either. In order to do the least amount of damage to his body while bulking up, Cooper — under the guidance of trainer Jason Walsh and a personal chef — took in…