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In light of research suggesting abnormal reward processing in eating disorders (EDs), the study of anhedonia in EDs may yield important insights into the role of reward in eating pathology. This meta\u2010analysis and review aimed to provide both a quantitative and qualitative synthesis of the existing literature on this topic.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>We conducted this research (or these meta\u2010analyses) according to PRISMA guidelines. We searched four databases for both peer\u2010reviewed and unpublished literature, and included studies only if a self\u2010report or clinical interview measure of anhedonia was administered to a sample with an ED diagnosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We included 21 studies in the systematic review, and 10 studies in two meta\u2010analyses that compared anhedonia between ED and control samples (<jats:italic>n<\/jats:italic>\u00a0=\u20099 studies) and within different ED diagnoses (<jats:italic>n<\/jats:italic>\u00a0=\u20095 studies). Meta\u2010analyses revealed that anhedonia was significantly higher in ED groups compared to healthy controls, but there was no significant difference in anhedonia between ED diagnostic groups. A qualitative review of the literature also suggested that anhedonia may be correlated with increased ED symptom severity.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p>Findings indicated that anhedonia is elevated in EDs and may be a relevant treatment target. Future research should examine how self\u2010reported anhedonia may correlate with components of reward processing in EDs in order to improve theoretical models as well as targeted interventions.<\/jats:p><\/jats:sec>","DOI":"10.1002\/eat.23645","type":"journal-article","created":{"date-parts":[[2021,11,23]],"date-time":"2021-11-23T05:06:12Z","timestamp":1637643972000},"page":"161-175","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":45,"title":["Anhedonia in eating disorders: A meta\u2010analysis and systematic review"],"prefix":"10.1002","volume":"55","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7202-8008","authenticated-orcid":false,"given":"Sarah C.","family":"Dolan","sequence":"first","affiliation":[{"name":"Department of Psychology Hofstra University  Hempstead New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruchika","family":"Khindri","sequence":"additional","affiliation":[{"name":"Department of Psychology Hofstra University  Hempstead New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Debra L.","family":"Franko","sequence":"additional","affiliation":[{"name":"Eating Disorders Clinical and Research Program Massachusetts General Hospital  Boston Massachusetts USA"},{"name":"Department of Applied Psychology Northeastern University  Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2601-581X","authenticated-orcid":false,"given":"Jennifer J.","family":"Thomas","sequence":"additional","affiliation":[{"name":"Eating Disorders Clinical and Research Program Massachusetts General Hospital  Boston Massachusetts USA"},{"name":"Department of Psychiatry Harvard Medical School  Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9269-0747","authenticated-orcid":false,"given":"Erin E.","family":"Reilly","sequence":"additional","affiliation":[{"name":"Department of Psychology Hofstra University  Hempstead New York USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1586-0930","authenticated-orcid":false,"given":"Kamryn T.","family":"Eddy","sequence":"additional","affiliation":[{"name":"Eating Disorders Clinical and Research Program Massachusetts General Hospital  Boston Massachusetts USA"},{"name":"Department of Psychiatry Harvard Medical School  Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,11,22]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/erv.2594"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12888-015-0395-z"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/jclp.22900"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1176\/appi.books.9780890425596"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyt.2019.00216"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.coph.2008.12.014"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/erv.2565"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/eat.20869"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.3758\/s13415-020-00804-6"},{"key":"e_1_2_8_11_1","volume-title":"Statistical power analysis for the behavioral sciences","author":"Cohen J.","year":"1988"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/eat.23147"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1037\/ccp0000396"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1471-0153(00)00007-6"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1053\/comp.2002.32356"},{"key":"e_1_2_8_16_1","article-title":"Exploring associations between personality trait facets and emotional, psychological and social well\u2010being in eating disorder patients","author":"Vos J. 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