Having a negative body image, needing to loose weight or maintain a certain weight are feelings people often associate with eating disorders. However another important aspect is needing to excessively control what is being put in your body.
For example an individual who for various reasons feel they cannot control what is happening in any aspect of their lives may begin to control their food intake as an attempt to have some control over their lives.
There is much more to an eating disorder that just feeling overweight although that maybe the prominent feeling they are able to express. There perhaps maybe a lot more going on for the individual that just having a negative body image.
Some people find certain emotions unbearable and find that controlling what they eat helps to manage or escape those feelings. Once that control has been established a vicious cycle can then form. The more unbearable the feelings are, the greater need to control their diet.