Aims and MethodThe aim of the study was to track service consumption in adult referrals to a specialised NHS eating disorders service over a 3-year period. We examined clinical records of a year's cohort (1999) of 147 referrals (96% female) assessed from the local catchment area.ResultsThe most common diagnostic group (42.8%) presented with some form of eating disorder not otherwise specified (EDNOS). There was no significant relationship between diagnosis and service consumption, so that full syndrome eating disorders were no more labour-intensive overall than EDNOS patients. Indeed, EDNOS patients accounted for 50% of all outpatient appointments and over a half of all in-patient days.Clinical ImplicationsThe results suggest that those planning services for eating disorders need to take into account the substantial demand from EDNOS patients.