Breaking into Hollywood as the overweight drug user in movies like “Knocked Up” and “Pineapple Express,” Seth Rogen needed to trim down to play a new role of The Green Hornet. Seth lost the weight in nine months on celebrity trainer Harley Pasternak’s 5-Factor Diet as well as working out. As of 2016, Rogan is still producing and acting in multiple movies and has kept off the weight.
Khloe Kardashian’s weight loss journey began in 2013, after her marriage with NBA player, Lamar Odom, ended. Khloe began following a strict diet plan, which includes eliminating dairy, and workout regimen. She wakes up at 5am everyday to workout and doesn’t eat until 8am. She sometimes works out with sister Kim and celebrity trainer Don Brooks. Khloe had always been labeled as the “fat Kardashian,” however, she proved the public wrong, and she now looks amazing after a 40 pound weight loss.
In December 2015, Kim gave birth to her second child, Saint. She was, once again, determined to lose the weight she gained during her pregnancy. On top of daily 6am exercise regimen with her trainer Don Brooks, she also put herself on the Atkins 40, a low-carb diet that involves eating 40 grams of net carbs a day. Kim also did the Atkins program after the birth of her first child, North. She lost a total of 70 pounds and weighs less than her pre-baby weight.
After suffering a heart attack in 2012, and being told by her doctors she would not survive another one, she decided to have gastric sleeve surgery. She had the procedure in July 2013. Even though she had surgery, Rosie still had to make hard changes to her daily life, including diet and exercise. O’Donnell, who once weighed 237 pounds, she now estimates she’s lost over 60 pounds since her surgery.
Tom Hanks understands the concept of gaining and losing weight for movie roles. Hanks previously put on 30 pounds to play a baseball coach in the 1992 film “A League of Their Own.” In 2000, he lost 50 pounds to play a man stranded on a desert island in “Castaway.” He was on a very strict diet of only water, vegetables, very little carbs, and fish. His exercise regimen included all types of cardio for 2 hours per day, 6 days per week. However, in 2013, he revealed he was diagnosed with Type 2 diabetes and will no longer be taking roles that will require him to gain or lose weight.