12 Extreme Celebrity Fitness Transformations

What He Did: Manganiello got totally ripped, bulking up and shedding fat. His abs alone deserve their own transformation article. Why He Did It: Manganiello was hardly scrawny when he starred as Sophia Bush's love interest Owen Morello on the CW's One Tree Hill, but he had always wanted to get big and muscular. It wasn’t until taking on the role as True Blood werewolf Alcide that he took fitness really seriously, and the results speak for themselves. What He Ate: Severely restricted his calorie intake, eating oatmeal, chicken, green beans, almonds, protein bars, apples and fish. See a full breakdown of his diet. His Workout: Manganiello worked out his chest and legs on Monday and Thursday, shoulders and biceps on Tuesday and Friday, and back and triceps on Wednesday and Saturday, and did 45 minutes of cardio every day before breakfast. Joe Says: "I had a friend of mine call me and tell me that it was a girl’s birthday in his office and they got her a cake with my picture on it. A year ago I wasn’t on anybody’s cake. It makes me feel really good, and it makes me want to work even harder from a fitness standpoint.” Difficulty Level: 7