Obesity is a multifactorial chronic disease requiring interdisciplinary care. This study aimed to evaluate the impact of a group-based interdisciplinary intervention for obese adults within the Unified Health System (SUS). Conducted in Ponta Grossa, PR, from October 2018 to June 2019, qualitative data were gathered through semi-structured interviews with nine participants selected based on significant quantitative outcomes. A clinical and sociodemographic questionnaire supported the data collection. Data were analyzed using Bardin's content analysis and QDAS Nvivo 11 software. The intervention emphasized cognitive restructuring, self-monitoring, gamification, coping strategies, and nutritional education, led by a dietitian, psychologist, and physical educator. Participants reported improvements in self-awareness, behavioral changes, and health literacy. Key themes included enhanced emotional regulation, motivation for lifestyle modifications, and perceived benefits of group dynamics. These findings underscore the potential for replicating low-cost, interdisciplinary interventions in public health systems, offering substantial psychosocial and behavioral benefits in managing obesity.

Liz Elaine Soweké holds a degree in Nutrition from the Federal University of Paraná and a Master’s degree in Health Sciences from UEPG. She is currently a Ph.D. candidate in the Graduate Program in Health Sciences at UEPG and works as a nutritionist in the Primary Care Coordination of the Municipal Health Foundation of Ponta Grossa. Liz has been actively involved in multidisciplinary residency initiatives and has experience in functional clinical nutrition, particularly in the care of individuals with chronic non-communicable diseases.