A selfie by Assets Model Lynn Kelly on her social medial account has triggered a torrent of negative social media comments.
The 26-year-old has been attacked for being "too skinny", with comments such as "disgusting for a girl" and "her ribs are poking out".
She posted the image on her Instagram account.
The comments about the photo, from the launch of a lingerie collection this week, stunned the former Miss Ireland.
"I'm slim, I'm a model", Lynn told the Herald.
"I took the pictures mid-show and I think it's been blown out of proportion a little bit.
"The lighting might not have been the best in the world, but anyone who knows me knows I'm extremely healthy and I train very, very hard."
The stunning model confessed she was not unduly worried by the comments.
"That's kind of part and parcel of social media. It doesn't bother me in the slightest," she said.
As a former Miss Universe Ireland, she acknowledged that "a lot of young girls would look up to the models", but they can see all the pictures on my website and see I'm healthy".
She added: "I do take really good care of myself. I get up most mornings at 5.30am and I'm in the gym before work most days."
Lynn recently posted photos of her toned body, saying of her gym regime: "It isn't easy but it's worth it."
The brunette beauty credits gruelling gym sessions and a healthy diet for her honed physique.
At the age of 20, Lynn claimed the Miss Universe Ireland crown in 2008 and has enjoyed a successful modelling career ever since.
The barbed comments have not changed her love of modelling, where "you're never doing the same job twice, so it's usually something completely different each day".
"While modelling certainly isn't as glamorous as it looks, the good things far outweigh the bad and I wouldn't change my job for anything," she said.
Courtney O'Hara of the Assets Agency said she had seen the more than 30 comments on their Instagram account about the photos of Lynn.
"I understand people expect models to be nearly anorexic because of the stories in the media, but hand on my heart, Lynn is healthy," she said. "She trains very hard. She kills herself training.
"Her stomach and ribs would be her smallest part.
"I think it's the way she's posing and the lighting. It just makes her look thin, it's the angle. She's very healthy."
"I find sometimes its easier for people to turn around and say, 'You're too thin'.But if a girl is carrying a little bit of weight they won't say, 'You're fat'. Either way, it's still insulting."