Don't ask Jamie Oliver about his weight -- or else!

One female reporter learned that the hard away, according to Australia's Herald Sun. When asked to comment on his expanding waistline, Oliver, 36, snapped: "Are you from a tabloid? Thank you for noticing, bitch!" It wasn't initially clear if Oliver, who is known as the Naked Chef, was kidding around.

PHOTOS: Most buzzed-about bodies in Hollywood

"I do my best," Oliver later explained. "Working in the food business is quite hard when someone is constantly asking you to try things. I eat fresh. I train twice a week. I could definitely do better, but I am trying to do my best like most people when they hit 30."

PHOTOS: Stars' favorite healthy snacks

Oliver later apologized to the reporter, saying: "I went out last night and had a few drinks after a very long day. My brain did not quite understand that question."

The restaurateur's weight gain is ironic, given that he tried to end childhood obesity for two seasons on ABC's Jamie Oliver's Food Revolution.

PHOTOS: Amazing star slimdowns

Oliver isn't receiving much support from fellow famous foodies, including chef Curtis Stone, 36.

"The interesting part of this for me is Jamie is a big voice in the food world. He's there talking about healthy food, and you've got to practice what you preach," Stone said on The Talk Thursday. "When you've got a place in the TV world, of responsibility, then you've got to follow through."

Get more Us! Follow us on Twitter, Friend us on Facebook, Subscribe to Us Weekly