Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 54 2 2025 02 08 387 395 Oykü Gul Nutrition and Dietetics, Faculty of Health Sciences, Bahcesehir University, Istanbul, Turkey Bilge Meral Koc Nutrition and Dietetics, Faculty of Health Sciences, Izmir Democracy University, Izmir, Turkey 2024 10 03 2024 12 15 Background: We aimed to evaluate the relationship between social media addiction and eating disorders in the followers of social media influencer. Method: The study (n=561) was conducted with 112 men and 449 women, who follow a social media influencer and volunteered to participate in the study. Social media addiction scale for adults form (SMAS-AF) was used to evaluate the social media addiction, and ORTO-15 scale was used to determine the eating disorders. Results: 80.9% of the participants had orthorexia nervosa and 19.1% were normal. BMI and social media addiction scale total score were significantly higher than optimal rates and ORTO-15 total score was significantly low (P<0.05). Age, anthropometric measurements, sub-scores of SMAS-AF and clinical domain sub-score of orthorexia nervosa were significantly different between the groups (P<0.05). It was significantly found that the emotional domain sub-score increased as the virtual tolerance score and virtual communication score increased (P<0.05). A relationship was found between the total score of the social media addiction scale and the emotional domain sub-score (P<0.05). Conclusion: Social media use may negatively affect individuals’ eating behaviors and contribute to body image dissatisfaction. https://ijph.tums.ac.ir/index.php/ijph/article/view/36805 https://ijph.tums.ac.ir/index.php/ijph/article/download/36805/8474