What You Scroll, Not How Long: Health Content on Social Media Tied to Obsessive Healthy Eating

A sweeping new study of more than 2,400 adults suggests that the kind of content people consume on social media may matter more for disordered healthy eating than the sheer number of hours they spend scrolling. The research, published in the journal Current Psychology, examined how four distinct categories of social media content relate to tendencies toward orthorexia nervosa, a contested but increasingly discussed pattern of pathological preoccupation with dietary purity. The findings point to self-optimization and health-focused material, including fitness, clean eating, and nutrition content, as the most consistent correlate of orthorexic tendencies, and they suggest that this link holds for both women and men.

Orthorexia nervosa is not yet an official diagnosis in the Diagnostic and Statistical Manual of Mental Disorders, but clinicians and researchers have grown increasingly attentive to it. Where anorexia nervosa centers on the quantity of food eaten and the pursuit of thinness, orthorexia centers on quality: an obsessive fixation on eating foods perceived as pure, clean, or healthy, often accompanied by escalating dietary restrictions, distress when ideal foods are unavailable, and, in severe cases, malnutrition. Because the condition sits at the intersection of genuine health motivation and disordered eating, researchers have struggled to draw the line between virtuous attention to diet and a clinically significant obsession. Social media has repeatedly been implicated, with earlier studies linking Instagram use to heightened orthorexic symptoms and time spent online to greater risk.

The new study, conducted by Busra Baspinar of the Department of Nutrition and Dietetics at Erzincan Binali Yıldırım University in Türkiye, took a different tack from much of the prior literature. Rather than measuring only how long participants spent on social media, the study asked what they actually viewed, sorting exposure into four content categories: self-optimization and health content, appearance and social comparison content, entertainment content, and informational and hobby content. The sample comprised 2,435 adults, a substantially larger cohort than most previous investigations in this area, which strengthens the statistical footing of the analysis.

Orthorexic tendencies were assessed with the ORTO-11, a shortened Turkish adaptation of the original orthorexia questionnaire developed by Donini and colleagues in 2005 and validated for Turkish speakers by Arusoğlu and coworkers in 2008. Importantly for interpreting the results, lower scores on the ORTO-11 indicate a greater orthorexic tendency, so the negative coefficients reported in the study correspond to stronger orthorexic traits. Using a threshold derived from the sample itself, the study classified 586 participants, roughly one in four, as having an elevated orthorexic tendency. These individuals tended to be older, more likely to be female, and more highly educated than the rest of the sample, although body mass index did not differ between the groups, a detail that helps separate the psychological pattern from simple weight status.

The statistical core of the study was a multivariable linear regression, a technique that allows each content category to be evaluated while holding the others, along with demographic variables, constant. This matters because the four content types are correlated in real life: someone who watches fitness videos also probably encounters appearance-focused posts, and untangling which exposure carries the signal requires simultaneous adjustment. In the fully adjusted model, self-optimization and health content emerged as the strongest correlate, with a standardized beta coefficient of minus 0.45 and a 95 percent confidence interval spanning minus 0.62 to minus 0.28, a highly statistically significant association corresponding to lower ORTO-11 scores and therefore greater orthorexic tendency. Informational and hobby content was also significantly associated with lower scores, with a beta of minus 0.38.

Perhaps the most striking result was what did not predict orthorexic tendencies. Appearance-oriented content and entertainment content, the categories most often blamed in public discourse about social media and body image, were not independently associated with orthorexia after adjustment. This is a genuinely counterintuitive finding. Decades of research have tied appearance-focused social media use to body dissatisfaction and thin-ideal internalization, mechanisms well documented in the eating disorder literature. The present results do not overturn that work, but they do suggest that orthorexia nervosa, with its distinctive focus on health and purity rather than weight, may follow a different pathway, one driven more by healthism and self-optimization narratives than by appearance comparison per se.

The sex-stratified analyses added an important layer of nuance. When the sample was split by sex, the association between self-optimization and health content and orthorexic tendencies was consistent across both groups: a beta of minus 0.45 among males and minus 0.48 among females, both statistically significant, with no significant interaction between sex and content type. This consistency is notable because eating disorders are often assumed to be predominantly female phenomena, and much of the intervention literature targets women. If the content-driven pathway to orthorexic tendencies operates similarly in men, then public health messaging and clinical screening may need to look beyond traditional demographic assumptions.

The study is candid about its limits, and the author’s transparency deserves attention. The effect sizes, measured with Cliff’s delta, ranged from 0.006 to 0.125, which the author characterizes as negligible, and the full regression model explained only about 4 percent of the variance in ORTO-11 scores. In plain terms, social media content type is a real but modest piece of a much larger puzzle. Genetics, personality traits such as perfectionism and obsessive-compulsive tendencies, and broader cultural currents around wellness and moralized eating almost certainly contribute far more. Moreover, the cross-sectional design captures a single moment in time, which means causality cannot be established and reverse causation cannot be excluded. It is entirely plausible that people already preoccupied with healthy eating seek out health-optimization content, rather than the content instilling the preoccupation.

Those caveats notwithstanding, the practical implication flagged in the study’s public significance statement is compelling. Clinicians and public health practitioners, the author argues, may benefit from asking patients not only how much time they spend on social media but what kinds of content they regularly consume. This reframing aligns with a small but growing body of work suggesting that content type can be a more influential factor for orthorexia than duration of use, including a 2025 cross-sectional study published in BMC Public Health that reached a similar conclusion. It also fits within a broader theoretical literature on healthism, the ideology that treats health as a moral obligation and personal project, which scholars have argued provides fertile ground for orthorexic thinking.

As orthorexia nervosa moves closer to formal recognition, with a 2026 concept analysis in Issues in Mental Health Nursing and a systematic review of meta-analytic findings in Current Nutrition Reports reflecting mounting scholarly attention, studies like this one help map the terrain. The picture that emerges is not a simple story of screens poisoning minds, but a more textured one in which the wellness economy’s content, the aspirational, optimization-focused material that promises a better self through cleaner eating and disciplined habits, is modestly but consistently associated with the very obsessions it claims to cure. For the millions of people whose feeds are dominated by fitness influencers and clean-eating tutorials, the message is not that every health video is harmful, but that the line between inspiration and obsession may run through the algorithm, and that researchers are only beginning to trace it.

Subject of Research: Associations between social media content types and orthorexia nervosa tendencies in adults

Article Title: Social media exposure by content type and orthorexia nervosa tendencies: multivariable and sex-stratified analyses in adults

Article References: Baspinar, B. (2026). Social media exposure by content type and orthorexia nervosa tendencies: multivariable and sex-stratified analyses in adults. Current Psychology, 45(18), Article 1535. https://doi.org/10.1007/s12144-026-10079-8

Image Credits: AI Generated

DOI: 10.1007/s12144-026-10079-8

Keywords: orthorexia nervosa, social media, content type, health-optimization content, clean eating, ORTO-11, eating disorders, sex differences, cross-sectional study, healthism, media psychology, public health