Zac Efron

Zac Efron started his career as a teen heartthrob in High School Musical, but he soon grew up to be a Hollywood hunk. He showed off his ripped physique in movies like Baywatch and Neighbors, where he had to work out intensely and follow a strict diet. He said he ate only organic and whole foods and avoided sugar, carbs, and dairy. He also trained with a personal trainer and did a lot of cardio and resistance exercises.