This study entitled “Implementation of the Diverse, Nutritious, Balanced, and Safe (B2SA) Program in Preventing Stunting at SD Negeri 109 Palembang in 2025” aims to analyze and describe the implementation of the B2SA Program as an effort to support stunting prevention among elementary school students. This research was motivated by the limited understanding of students and teachers regarding healthy food consumption patterns and the increasing habit of consuming unhealthy snacks among students. The study employed a descriptive qualitative approach, with data collected through observation, interviews, and documentation. Data analysis was conducted using George C. Edwards III’s policy implementation theory, which includes four main aspects: communication, resources, disposition, and bureaucratic structure. The findings indicate that the implementation of the B2SA Program at SD Negeri 109 Palembang has been conducted effectively. Communication was carried out through coordination between government institutions and the school, as well as through educational activities supported by accessible learning media. The program was supported by adequate human resources, facilities, and positive commitment from stakeholders. Furthermore, task distribution and coordination mechanisms between related parties were clearly established. The implementation of the B2SA Program has increased students’ awareness of the importance of consuming diverse, nutritious, balanced, and safe food. Continuous education, regular socialization, and support from schools and teachers are needed to ensure sustainable implementation and strengthen stunting prevention efforts.