Did Zac Efron eat dog food by mistake?

Zac Efron has a secret.

If an Australian radio station is to be believed, Zac Efron did indeed eat a doggie treat meant for Vanessa Hudgens' dog, Shadow.

According to radio station 92.9, Efron scarfed down a few tasty-looking cupcakes sitting on a counter. Too late, he learned they were dog cupcakes from a posh pet boutique.

Unfazed, he quipped that the cupcakes were "good, if a little bland."

Not that he's worried about it or anything, but the doggie dessert probably contained human grade ingredients, as many upscale baked dog treats are these days.

Vanessa Hudgens and Shadow.

Looks llike Zac can afford to snack once in a while.