Caroline Rhea is sick of people asking her if she's lost weight.

She hasn't. And just because she's the host of NBC's The Biggest Loser doesn't mean she will.

"Do you think Jeff Probst (Survivor) has eaten one bug?" she says.

"I try -- whenever I have just watched the show, I am completely and utterly committed because it's so unbelievably inspiring. Did you see Amy? She has transformed into Christie Brinkley."

The Biggest Loser, now in its third season, gathers contestants from across the U.S. to face real-life temptations while transforming their bodies, health and lives. In the end, the person who sheds the largest percentage of weight wins US$250,000.

Over the past two years, the show has helped dozens of Americans reach their weight-loss goals, but Rhea's still not a fan of its title.

"I hate it. I want to film it in Hawaii and call it Come on I Wanna Weigh Me," she jokes.

"I'll be perfectly honest, the show was not pitched to me in the way it turned out. It was pitched like, 'Oh yes, it will be funny and it will be much less like a reality show and more like a talk show,' which is what I wanted.

"Then it sort of evolved into something else. So the title to me actually doesn't bother me anymore because the contestants are who I really care about.

"Now they literally all say, 'I want to be The Biggest Loser,' so the connotation has changed so much that I'm OK with it."

Before the first season aired, the show's producers and Rhea took a lot of heat from the media, which deemed it the lowest form of reality TV.

"I really tried not to pay attention to that kind of stuff. I knew in my heart I would never make fun of anybody and I knew it was never going to be degrading coming from me ... so I wasn't worried."

Rhea, a Canadian stand-up comedienne and actress, is also best-known as Hilda, the aunt of Melissa Joan Hart's TV character in Sabrina the Teenage Witch.

She says the fact she's recognized by fans of both shows is flattering and a bit strange.

"If I am standing next to somebody who hasn't seen the show, they must think I'm the weirdest person in the world because people constantly come to me and say, 'Is the cat real? You are really funny. And I have lost 40 pounds.'"

Fans of The Biggest Loser also think Rhea must have diet tips to share, which is not the case.

In fact, the only thing she's learned from the show is people need to be on reality TV and divided into teams if they want to lose weight.

"I'll tell you what my new exercise plan is. Someone calls my cellphone, I run all over my house trying to find it and then they hang up on me. Then they call my home phone and I run all over the house trying to find my house phone. It works."