Longitudinal Effects of a Commercial Digital Weight Management Program on Weight Loss

This randomized controlled trial (RCT) will test how well a fully remote weight management program (Noom Weight) helps adults with overweight or obesity (BMI 25-45) achieve weight loss in both the short-term (16 weeks) and the long-term (68 weeks), compared to an educational program). Participants will be randomly assigned to use the 16-week Noom Weight program or receive weekly emails with weight loss-related tips and information. Weight will be measured at baseline, 16, 29, 42, and 68 weeks. Changes in physical activity, eating disorder risk, and body appreciation will also be assessed.