Purpose: A home-linked nutrition education program was developed to improve sustainable eating concepts and food and nutrition literacy skills using augmented reality (AR) and evaluate its effectiveness. Method: The subjects in the study were students in grades 1 to 6 of an elementary school. An educational program was organized for four sessions per grade based on a literature review of sustainable eating habits and food and nutrition literacy and the achievement goals of the 2022 revised curriculum. The goal was to improve immersion and practical skills through learning activities using AR technology. Results: Grades 1?3 showed significant improvement in the health and care areas, but there was no difference in the environment area. Grades 4?6 showed significant improvement in all areas, and in terms of food and nutrition literacy, there were significant improvements in cognition-understanding, cognition-knowledge, and technology-food selection. However, no differences were observed in some technical areas. Conclusion: This paper reports the effectiveness of an AR-based home connection nutrition education program for elementary school students. Future development of AR-based nutrition education programs and home connection activities will contribute to learning efficiency and c...