Parra Fernández, María LauraManzaneque Cañadillas, MaríaOnieva Zafra, María DoloresFernández Martínez, Elia2021-03-122021-03-122020-12Parra Fernández, M. L., Manzaneque Cañadillas, M., Onieva Zafra, M. D. ... Fernández Martínez, E. (2020). Pathological Preoccupation with Healthy Eating (Orthorexia Nervosa) in a Spanish Sample with Vegetarian, Vegan, and Non-Vegetarian Dietary Patterns. Nutrients, 12(12), 3907. DOI: https://doi.org/10.3390/nu121239072072-6643http://hdl.handle.net/10272/19533Orthorexia nervosa (ON) has been defined as an obsessive and pathological attitude towards healthy nutrition. The aim of this study was to compare individuals who followed a vegan, vegetarian, and omnivore diet in terms of ON behaviors and to examine their prime motivations, attitudes, and behaviors towards food. The Spanish version of the ORTO-15 test—ORTO-11-ES— and the Food Choice Questionnaire (FCQ-SP) were used with a demographic questionnaire in an online survey disseminated among the social networks of different vegetarian associations and the general population. Of 466 individuals, 55% followed an omnivore diet, 23.5% were vegetarian and 21.7% were vegan. Results revealed relationships between type of diet and FCQ-SP dimensions for: health and natural content (H = 8.7, p < 0.05), sensory appeal (H = 11.4, p < 0.01), weight control (H = 40.4, p < 0.01), and familiarity (H = 37.3, p < 0.01). Our results confirm the findings of recent studies showing that individuals who follow a vegan or vegetarian diet are more likely to develop a pathological preoccupation with healthy eating versus omnivores. Further studies are required to determine the potential lines of action for the prevention of ON.engAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Orthorexia nervosaVegetariansVegansORTO-11-ESFCQ-SPjournal article10.3390/nu12123907open access