One should never generalize. Surely this is a high-risk category just because today we tend to mistakenly associate the concept of beauty with that of the extreme thinness, and many models are likely to have a relationship with the altered food.
Models’s thinness we see on the catwalks is not an “healthy” thinness because to reach it, except for rare cases of girls with a particular body and metabolism, they have to keep under tight control the diet, through physical activity and intake of substances that can alter the metabolism, with serious damage to health and sometimes with behavior close to anorexia.