“Eating disorders” is the term used to describe a category of mental illnesses involving disordered eating and weight problems. The four main disorders Anorexia Nervosa (AN), Bulimia Nervosa (BN), Binge Eating Disorder (BED) and Other Specified Feeding or Eating Disorder (OSFED). These are serious and often complex disorders that can have significant and long-lasting impacts on a person’s life. This guide highlights some of the basics of the eating disorder category, but as this is such a complex area we will only be scratching the surface. We therefore encourage sufferers, or those with an interest in the subject, to seek out further help and information.