<Li> Nutrition counseling and Medical nutrition therapy </Li> <Li> Medication: Orlistat is used in obesity treatment . Olanzapine seems to promote weight gain as well as the ability to ameliorate obsessional behaviors concerning weight gain . zinc supplements have been shown to be helpful, and cortisol is also being investigated . </Li> <Li> Self - help and guided self - help have been shown to be helpful in AN, BN and BED; this includes support groups and self - help groups such as Eating Disorders Anonymous and Overeaters Anonymous . </Li> <P> There are few studies on the cost - effectiveness of the various treatments . Treatment can be expensive; due to limitations in health care coverage, people hospitalized with anorexia nervosa may be discharged while still underweight, resulting in relapse and rehospitalization . </P>

All are effective treatments for eating disorders except