The members of the team are usually a psychiatrist, therapist, and registered dietitian, but other clinicians may be included.That said, some treatment methods are:

Cognitive behavioral therapy (CBT), which postulates that an individuals feelings and behaviors are caused by their own thoughts instead of external stimuli such as other people, situations or events; the idea is to change how a person thinks and reacts to a situation even if the situation itself does not change. See Cognitive behavioral treatment of eating disorders. Acceptance and commitment therapy: a type of CBT
Cognitive behavioral therapy enhanched (CBT-E): the most widespread cognitive behavioral psychotherapy specific for eating disorders 
Cognitive remediation therapy (CRT), a set of cognitive drills or compensatory interventions designed to enhance cognitive functioning. Exposure and Response Prevention: a type of CBT; the gradual exposure to anxiety provoking situations in a safe environment, to learn how to deal with the uncomfortableness
The Maudsley anorexia nervosa treatment for adults (MANTRA), which focuses on addressing rigid information processing styles, emotional avoidance, pro-anorectic beliefs, and difficulties with interpersonal relationships. These four targets of treatment are proposed to be core maintenance factors within the Cognitive-Interpersonal Maintenance Model of anorexia nervosa. Dialectical behavior therapy
Family therapy including "conjoint family therapy" (CFT), "separated family therapy" (SFT) and Maudsley Family Therapy. Behavioral therapy: focuses on gaining control and changing unwanted behaviors.
Some people have a previous disorder which may increase their vulnerability to developing an eating disorder. Some develop them afterwards. The severity and type of eating disorder symptoms have been shown to affect comorbidity. There has been controversy over various editions of the DSM diagnostic criteria including the latest edition, DSM-V, due in May 2013. Cognitive attentional bias
Attentional bias may have an effect on eating disorders. Attentional bias is the preferential attention toward certain types of information in the environment while simultaneously ignoring others. Individuals with eating disorders can be thought to have schemas, knowledge structures, which are dysfunctional as they may bias judgement, thought, behaviour in a manner that is self-destructive or maladaptive. They may have developed a disordered schema which focuses on body size and eating. Thus, this information is given the highest level of importance and overvalued among other cognitive structures. Researchers have found that people who have eating disorders tend to pay more attention to stimuli related to food. For people struggling to recover from an eating disorder or addiction, this tendency to pay attention to certain signals while discounting others can make recovery that much more difficult.Studies have utilized the Stroop task to assess the probable effect of attentional bias on eating disorders. This may involve separating food and eating words from body shape and weight words. Such studies have found that anorexic subjects were slower to colour name food related words than control subjects.