Having an eating disorder doesn't always mean a person is underweight and emaciated, in fact, it's probably the least likely sign. There isn't a certain "look" - eating disorders come in all shapes, weights, and sizes. An eating disorder is about the MIND, not the BODY. It is an addictive, life threatening, mental illness. The body is effected, though in most cases the damage is internal and cannot be seen on the outside.