The purpose of the current study is to implement an evidence-based prevention program to promote positive health behaviors among young adult women. It will be one of the first to intentionally execute a prevention program targeting well-established risk factors for both obesity and eating disorders in this high-risk population. Intervention content focuses on promoting body size diversity and emphasizing positive health and behavior change in order to reduce stigmatization and remain sensitive to weight-related issues. The manual was developed by integrating two successful existing prevention programs and expanding on previous prevention efforts. Specifically, the diversity of beauty ideals were highlighted to enhance relevance among ethnic minority women, and distress tolerance and emotion regulation skills training were included to target the maladaptive coping mechanisms young adults use to manage the stress associated with transitioning to college.