Celiac disease is a chronic immune-mediated disorder that requires lifelong adherence to a gluten-free diet. Despite dietary treatment, children with celiac disease may experience nutritional inadequacies, unhealthy eating behaviors, reduced physical activity, and impaired quality of life. This randomized, single-blind, controlled trial aims to evaluate the effects of a structured nutrition education program combined with physical activity education on anthropometric measurements, eating behavior, physical activity, and health-related quality of life in children aged 8-12 years with celiac disease. Fifty-four participants will be randomly assigned to one of three groups: (1) nutrition and physical activity education, (2) physical activity education only, or (3) no education (control). Outcomes will be assessed at baseline and after a 6-week follow-up using validated questionnaires, anthropometric measurements, body composition analysis, and physical performance tests. The findings are expected to provide evidence for multidisciplinary educational interventions to improve the health and well-being of children with celiac disease.