Mobile app trial shows promise in bridging gap for teenagers with eating disorders

A recent study suggests that mobile-first interventions, including social networking features, could significantly improve treatment access and outcomes for adolescents at risk of eating disorders, offering a promising alternative to face-to-face care.

The latest trial of a mobile app for teenagers with or at high risk of eating disorders suggests that digital support may help close a stubborn treatment gap, particularly for young people who are reluctant to seek face-to-face care. In a three-arm pilot randomised controlled trial, researchers compared self-help, guided self-help and guided self-help with a social networking feature in a 3-month intervention followed by follow-up assessments at 6 weeks, 3 months and 6 months.

Patricia Cavazos-Rehg and colleagues at Washington University School of Medicine recruited 148 teenagers through social media and an online screening tool. The study was designed to test acceptability, feasibility and early signs of effectiveness, rather than to deliver a definitive verdict on clinical benefit. The app combined psychoeducational modules and interactive tools, while one version added an Instagram-style social networking element aimed at increasing engagement and peer connection.

According to the study’s findings, teenagers gave positive feedback on the app’s usefulness and ease of use, and the researchers reported encouraging signs that the intervention could influence eating-disorder thoughts and behaviours. The strongest change in binge eating was seen in the guided self-help condition, while all three groups showed declines over time. The paper’s supplementary tables also examine changes in Eating Disorder Examination-Questionnaire scores, compensatory behaviours such as vomiting or laxative use, and binge eating across treatment conditions.

The results fit a wider body of research showing that online and app-based interventions can reduce eating-disorder symptoms, although the size of the effect often depends on design and support. Earlier studies have found that baseline symptom severity strongly shapes outcomes, while social support can improve response, and group-based cognitive behavioural treatment has also shown meaningful reductions in eating-disorder psychopathology. The new trial adds to that evidence by suggesting that, for teenagers, a mobile-first model may be a practical way to extend help to those who might otherwise receive none at all.

Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.