The Multidimensional Impact of Gluten-Free Diet Adherence on Quality of Life in Pediatric and Adolescent Celiac Disease: A Systematic Review

Background/Objectives: Celiac disease is a chronic autoimmune disorder triggered by gluten ingestion in genetically predisposed individuals. In children and adolescents, it presents heterogeneously and may negatively affect physical, psychological, and social well-being. Although a strict gluten-free diet is the only effective treatment, it may also impose important dietary, social, and economic burdens. This systematic review aimed to evaluate the impact of celiac disease on the quality of life of affected children and adolescents and their families. Methods: This systematic review was conducted according to PRISMA, AMSTAR 2, and Cochrane Handbook recommendations. Searches were performed in PubMed, Scopus, CINAHL, Web of Science, and PsycINFO for studies published between 2019 and 2026 in English or Spanish. Quantitative, qualitative, and mixed-methods studies on pediatric celiac disease and quality of life were included. Two reviewers independently conducted study selection, data extraction, and risk-of-bias assessment. Due to study heterogeneity, a narrative synthesis was performed. Results: Thirteen studies were included. Children and adolescents with celiac disease generally reported lower quality of life, particularly in emotional, social, and school-related domains. Adherence to a gluten-free diet was an important factor associated with quality of life. Although it improved symptoms, it was also linked to social restrictions, nutritional imbalances, and financial burden. Families also reported stress, lifestyle changes, and reduced well-being. Findings should be interpreted cautiously due to heterogeneity and variability in methodological quality across studies. Conclusions: Current evidence suggests that celiac disease may have a multidimensional impact on the quality of life of pediatric patients and their families. These findings support the need for a comprehensive multidisciplinary approach addressing dietary, psychosocial, and family-related factors.