victoria-beckhamFormer Spice Girl turned designer Victoria Beckham has joined the campaign to convince fashion houses to avoid hiring underweight models to walk the runways.

Beckham, who launched her first couture clothing collection in 2008, made the announcement during her appearance on ABC’s “The View” on Wednesday (Feb. 17).

The Council of Fashion Designers of America (CFDA) is leading the drive to convince the industry to be more responsible when dealing with young, vulnerable models, she said.

Right now, most sample dresses shipped by designers for photo shoots and fashion shows are size “zero.” Groups are calling on the industry to raise sample dresses to a size “four.”

“The CFDA has reached out to designers, stylists and casting directors not to work with underage models, girls that are too thin and to be more ethnically aware. And I think designers are listening,” Beckham said.

“I had a casting last week and had some terribly thin girls come in, and it wouldn’t have worked. The campaign the CFDA has launched is called ‘Health is Beauty’ and they are definitely encouraging designers to work with healthier sized models,” she said.

Beckham, who is also model thin, has been criticized in the past about her weight, and some have questioned whether she has battled an eating disorder. But Beckham has denied the claims.

During New York Fashion Week, Canadian supermodel Coco Rocha said she was considered overweight by many of the world’s top fashion designers, even though she weighs only 105 pounds.

Rocha, 21, said she had lost out on catwalk work because she refused to lose any more weight. She modeled last week for designer Diane von Furstenberg.

“I’m not in demand for the shows anymore,” she said. “I’ve been told to lose weight when I was really skinny.”