Zac Efron Bulks Up @ GNC

Zac Efron shops with health and fitness on his mind by stopping a local GNC (General Nutrition Center) store in North Hollywood on Wednesday. He carried around his purchases inside his favorite “Considered Backpack” by Nike before hopping into his Oldsmobile Alero.

The High School Musical star has been busy bulking up and hitting the gym a lot lately.

How else would he look like that for the cover of Rolling Stone?!

NINE DAYS until the premiere of High School Musical 2!!!