Renee Zellweger
Let’s be real, Renee Zellweger doesn’t need an introduction at all. She’s Renee Zellweger! As most of us know, for her role in the Bridget Jones’s Diary films, she gained quite a lot of weight for the role – after all, she did go on a 4,000 calorie-a-day diet for the part. Throughout her career, she has undergone a few weight-loss regimes – all of which work!