The Associations Between Vegetarian and Vegan Diets and Orthorexia Nervosa Symptoms in Adults: A Systematic Review and Meta‐Analysis
Adherence to VVD is associated with higher ON symptoms in young and middle-aged adults. However, these results should be interpreted with caution due to high heterogeneity and the low overall methodological quality of the exclusively cross-sectional studies included. Higher-quality longitudinal studies using validated assessment tools are needed to establish clearer causal relationships and inform clinical screening and intervention strategies.
Authors
- Bruno Bizzozero‐Peroni (ORCID: https://orcid.org/0000-0003-0614-5561)
- Alberto Durán Gonzáléz (ORCID: https://orcid.org/0000-0002-4203-9400)
- Estela Jiménez‐López (ORCID: https://orcid.org/0000-0001-8553-7701)
- María Eugenia Visier‐Alfonso (ORCID: https://orcid.org/0000-0003-0364-8032)
- Vicente Martínez‐Vizcaíno (ORCID: https://orcid.org/0000-0001-6121-7893)
- Rubén Fernández‐Rodríguez (ORCID: https://orcid.org/0000-0001-7504-1534)
- Arthur Eumann Mesas (ORCID: https://orcid.org/0000-0002-0088-8607)
- Valentina Díaz‐Goñi (ORCID: https://orcid.org/0000-0002-1724-1893)
- José Francisco López‐Gil (ORCID: https://orcid.org/0000-0002-7412-7624)
- Tomás Olivo Martins de Passos (ORCID: https://orcid.org/0009-0009-2419-6857)
Institutions
- Universidade Estadual de Londrina (BR)
- Deakin University (AU)
- Stockholm University (SE)
- Universidad de Granada (ES)
- Universidad de la República de Uruguay (UY)
- Instituto de Salud Carlos III (ES)
- Karolinska Institutet (SE)
- Universidad Autónoma de Chile (CL)
- Universidad Espíritu Santo (EC)
- Centro de Investigación Biomédica en Red de Salud Mental (ES)
- Universidad de Los Lagos (CL)
- Medical Research Network (US)
- University of Castilla-La Mancha (ES)
Publication Details
- Journal
- International Journal of Eating Disorders
- Published
- 2025-11-13
- DOI
- https://doi.org/10.1002/eat.24596
- Primary Topic
- Eating Disorders and Behaviors
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Agencia Nacional de Investigación e Innovación
- Ministerio de Economía y Competitividad
- Universidad de Castilla-La Mancha
- CHIST-ERA