Evidence map›Paper›PMID 41831190›Full record

ArticleEating and weight disorders : EWD2026

Perfectionism, obsessive-compulsive symptoms, and health-thinness-cleanliness motivations as primary correlates of orthorexia nervosa.

Maddy Greville-Harris, Laura Vuillier, Catherine Talbot, Katherine Appleton

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Article in Eating and weight disorders : EWD, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Maddy Greville-HarrisDepartment of Psychology, Washington Singer Laboratories, Health and Life Sciences, University of Exeter, Exeter, EX4 4QG, UK. m.l.greville-harris@exeter.ac.uk.
Laura VuillierDepartment of Psychology Faculty of Science and Technology, Bournemouth University, Poole, BH12 5BB, UK.
Catherine TalbotDepartment of Psychology Faculty of Science and Technology, Bournemouth University, Poole, BH12 5BB, UK.
Katherine AppletonDepartment of Psychology Faculty of Science and Technology, Bournemouth University, Poole, BH12 5BB, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOrthorexia Nervosa (ON) is characterized by an obsessive preoccupation with eating foods perceived as healthy or clean. Despite growing research interest, risk factors and underlying motivations for ON remain poorly understood. This study examined demographic factors, psychological correlates, and dietary motivations associated with ON symptomatology, building on McComb and Mills' (2019) theoretical model.

methodsParticipants (N = 697) completed validated measures of ON, alongside assessments of demographic factors (age, gender, socioeconomic status, dietary means), psychological variables (perfectionism, obsessive-compulsive symptoms, perceived control, perceived vulnerability to disease, past eating disorder diagnosis), and dietary motivations (thinness, health, cleanliness, muscularity, feeling mentally well).

resultsThree dietary motivations: desires to be thin, healthy, and clean were significantly associated with ON symptoms across both measures. Perfectionism (specifically perfectionistic striving) and obsessive-compulsive symptoms (particularly the 'washing' subscale reflecting contamination concerns) emerged as the strongest psychological predictors of ON symptomatology. Demographic variables (age, gender, socioeconomic status) were not associated with ON symptoms, although lower perceived dietary means was associated with higher ON symptomatology. Results were largely replicated using both ON scales.

conclusionON appears driven by perfectionist striving and contamination-related obsessive-compulsive symptoms, alongside complex motivations that extend beyond health to also include thinness and cleanliness concerns. These findings suggest that ON represents a convergence of multiple motivational domains and highlights potential targets for intervention, including perfectionism-based and exposure-response prevention approaches adapted from obsessive-compulsive disorder and eating disorders treatments. LEVEL OF EVIDENCE: Level V, based on a descriptive study.

Indexed as

Feeding and Eating DisordersFeeding BehaviorMotivationObsessive BehaviorObsessive-Compulsive DisorderPerfectionismThinnessAdolescentAdultFemaleHumansMaleYoung AdultDietary motivationsDisordered eatingObsessive–compulsive symptomsOrthorexia nervosaPerfectionism

Identifiers

PMID41831190
PMCPMC13219126

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.