This research explored whether orthorexia nervosa is associated with deficits in executive function.Method: Participants (n = 405; 80% women, 53% White, mean age = 24, mean body mass index = 25) completed the Orthorexia Nervosa Inventory (ONI) and the Behavior Rating Inventory of
Executive Function-Adult version (BRIEF-A).Results: ONI scores were significantly correlated with all BRIEF-A scales, exhibiting the strongest correlations with the scales assessing behavioral regulation: Set Shifting, Inhibition, Emotional Control, and Self-Monitoring. Hierarchical regression analyses revealed that these relationships remained significant after controlling for demographic variables (e.g., gender, body mass index, age, education level) and diagnoses of an eating disorder, obsessive-compulsive disorder, attention deficit/hyperactivity disorder, autism, and learning disability.
Conclusion:These findings suggest that, despite unique manifestations, orthorexia and anorexia may possess an overlapping neuropsychological profile marked by deficits in executive function, which may negatively impact daily life.