Are magazine models too skinny?
15 May 2012 Last updated at 18:35 BST
A big British modelling agency has agreed to stop using models who are too skinny.
Elite Model Management have backed a campaign, started by fashion magazine Vogue, to promote healthier views of body image among children.
They say they won't knowingly use any models who are under 16 or who look like they could have an eating disorder.
The fashion world has been criticised for using models who are really thin.