EATING DISORDERS: Edited by Hans W. Hoek and Anna Keski-RahkonenAnorexia nervosa and comorbid autism spectrum disordersSaure, Emmaa; Laasonen, Marjaa,b,c; Raevuori, Anud,eAuthor Information aDepartment of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki bLogopedics, School of Humanities, Philosophical Faculty, University of Eastern Finland, Kuopio cDepartment of Otorhinolaryngology and Phoniatrics, Head and Neck Surgery, Helsinki University Hospital and University of Helsinki dClinicum, Department of Public Health, University of Helsinki eDepartment of Adolescent Psychiatry, Helsinki University Hospital, Helsinki, Finland Correspondence to Emma Saure, Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, P.O. Box 21, FI-00014 Helsinki, Finland. E-mail: [email protected] Current Opinion in Psychiatry: November 2021 - Volume 34 - Issue 6 - p 569-575 doi: 10.1097/YCO.0000000000000742 Buy Metrics Abstract Purpose of review Traits of autism spectrum disorder (ASD) are overrepresented among individuals with anorexia nervosa (AN) and may also moderate the behavioral manifestation of AN. This review aims to provide an overview of AN and comorbid ASD. Recent findings Elevated ASD traits do not seem to precede AN among some individuals but are rather related to the illness stage. However, studies have suggested that there are ASD-specific mechanisms for developing AN in a subgroup of individuals with AN. Pronounced traits of ASD and diagnosed ASD are associated with illness prolongation and poorer outcomes in AN, and individuals with AN and elevated ASD traits may benefit less from many of the current treatments. Studies do not support a specific genetic relationship between ASD and AN. Summary Recent research encourages the improved recognition of elevated ASD traits in individuals with AN and provides grounds for developing tailored treatments for those with this comorbidity. Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.