20 celebrities with the most extreme body transformations for a role

5) Zac Efron

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Zac Efron's Baywatch (2017) stunned the audience who remembered him from High School Musical. To achieve a muscular yet lean body Efron avoided processed food and remained on the more stringent carb-cycling diet that reduced carbohydrate intake and relied heavily on proteins and fats. His training program consisted of circuit training and hardcore cardio sessions guided by trainer Patrick Murphy.

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