The goal of this observational study is to assess mealtime anxiety in patients with eating disorders receiving treatment at an in-patient unit. Anxiety wil be assessed using ecological momentary assessment (EMA). The main research question is:

• Does post meal activity reduce anxiety in patients with eating disorders?

Study participation will last for two weeks. Participants will be reporting current levels of anxiety/distress on an EMA mobile app during treatment as usual. During one of the two study participation weeks, the participants will perform post mealtime activity.

Inclusion Criteria:

• All patients admitted to the Regional Department for Eating Disorders adult in-patient unit (>16 years old) will be invited to participate.

Exclusion Criteria:

• Patients who receive tube feeding for all meals during the study period will be excluded.

The study population will be patients suffering from eating disorders, treated at a specialized eating disorder unit, at tertiary level of health care. The population is expected to primarily consist of individuals suffering from anorexia nervosa, but all patients admitted to the ward will be invited to participate, independent of eating disorder diagnosis.