RENEE ZELLWEGER

Renee Zellweger needed to add a few extra pounds to play her role as Bridget in the 2001 movie Bridget Jones’s Diary. When the film’s production ended, she then wanted to lose the weight she added by following the Zone Diet. Here, she has to watch how many of each food group she consumes. This diet plan asks its followers to stick to a strict eating habit of only consuming a specific ratio of 40 percent carbs, 30 percent protein, and 30 percent fat.

For a dieter to achieve this, they need to possess a high degree of motivation, strong enough to keep them committed to the program, especially in the long run. If determination is a vital piece behind achieving ideal results, then the actress surely has that in spades. After all, despite having to gain weight for two separate occasions – both for follow-up Bridget Jones movies, Renee still managed to lose the unwanted pounds after production for the films ended.