Kilic, GamzeSamar, Belemir SuleAkkus, KoraySutcu, Serap TekinsavSeckiner, SeldaSimsir, Ilgin Yildirim2026-01-312026-01-3120253059-3042https://doi.org./10.1007/s41811-025-00249-0https://hdl.handle.net/20.500.12662/10633Interest in psychological interventions for obesity treatment has been increasing. This study examines the effectiveness of cognitive behavioral group therapy (CBGT) alongside standard diet therapy in reducing body mass & imath;ndex (BMI). Additionally, it investigates the predictive role of emotion regulation and problem-solving sessions integrated into the CBGT protocol. Participants with a BMI of 30 or higher were assigned to diet-only, diet + CBGT, or control groups. Measurements were taken at baseline, post-therapy, and six months later. Results showed significant BMI reductions in diet and diet + CBGT groups, with no changes in the control group. Six months later, the diet + CBGT group maintained their BMI reductions, unlike the diet-only group. Regression analysis indicated that positive emotion regulation predicted BMI changes, while negative regulation and problem-solving did not. These findings highlight the role of CBGT in obesity treatment and suggest that incorporating sessions aimed to improve positive emotion regulation skills would be beneficial.eninfo:eu-repo/semantics/closedAccessObesityGroup therapyCognitive behavioral approachCognitive behavioral group therapyArticle10.1007/s41811-025-00249-02-s2.0-1050107229845683Q254518WOS:001456092400001N/A