Technically speaking, there are only a small number of 'official' eating disorders. EDNOS (Eating Disorders Not Otherwise Specificed) provides a generic place to cover a variety of disordered eating behaviours that do not conform to the diagnostic criteria for Anorexia and Bulimia Nervosa, or Binge Eating Disorder.
However, there are a number of other conditions in which disordered eating, or body image and weight play a significant part. Here, we have included information about disorders, created by third parties, such as the media and authors. They are 'labels' that are heard increasingly in the media, and the following offers some explanation.
There are a number of other disorders that are often considered to be related in some way to 'eating disorders'. They are usually conditions in their own right, with their own diagnostic criteria. They are similar in that they possess a symptomatic component in common with symptoms existing with an 'eating disorder'.