Bulky Zac Efron Goes on a Diet!

USMagazine, Monday, January 24, 2011, 9:19am (PST)

Is Zac Efron trying to slim down?

On Thursday, the actor, 23, visited an L.A. studio (he's doing voiceover work for a new Dr. Seuss flick) with a bag of grub from Z.E.N. (Zero Effort Nutrition) foods, a diet delivery service that helps stars eat calorie-controlled meals.

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Efron has said he gained about 18 pounds (and got a much-scrutinzed buzz cut) to play an Iraq War veteran in The Lucky One.

"I was just eating, eating, eating," he told E! News of the beef-up. The Lucky One wrapped up shooting just before Christmas.

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Another Z.E.N. Foods afficianado? His ex Vanessa Hudgens. "I'm so thankful there's a service like Z.E.N. Foods that tastes GREAT and makes it so easy to eat right," she says on the company's website.

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Although the pair called it quits after almost five years in December, they were spotted packing on the PDA at L.A. nightclub Eden earlier this month.

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