Peer-Supported E-Health Intervention for College Student Weight Management and Mental Health

In addition to all components of Standard Health Education, participants join biweekly, small-group meetings (6-8 peers) facilitated by trained upper-year student mentors who guide goal-setting, experience sharing, and mutual accountability. A moderated online chat forum provides daily encouragement, peer-to-peer Q\&A, and group reminders, distinguishing this arm by its structured social support network.

This arm integrates the full Peer Support Intervention with a custom mobile/web application that delivers weekly, interactive modules on nutrition, exercise, and mental health; offers in-app self-monitoring tools for weight, dietary intake, and mood; and hosts monthly live Q\&A webinars with clinical nutritionists and mental health professionals. The combination of real-time peer interaction and scalable digital content differentiates it as a multifaceted, blended-delivery intervention.