Objective Since 2006, Sakado city in Saitama prefecture, Japan, has been implementing the Sakado "Shokuiku (food and nutrition education)" Program in collaboration with Kagawa Nutrition University. The present study aimed to evaluate the program, and to discuss its achievements and future challenges.Methods This program targeted all students from the 5th through the 8th grade. Data from surveys conducted with students and teachers during the school year from 2006 through 2014 were to analyze the program's implementation process and to evaluate its impact. For process evaluation, two surveys conducted with teachers were used. Survey A pertained to the status of program implementation and students' reaction towards each lesson conducted at schools. Survey B pertained to school teachers' involvement in the program and changes of teaching content and interest in food and nutrition education after its implementation, to assess their reaction towards the program. For impact evaluation, three surveys conducted with students were used. Specifically, Survey C aimed to confirm the effectiveness of the 4-year program, Survey D assessed the same in each grade, and Survey E examined the attitudes and behaviors of students who completed the 4-year program.Results More than 70% of the classes were able to implement the program successfully in the fourth year of elementary school and the second year of middle school. Further, 80% of the classes utilized all the educational materials, and more than 50% of the students understood almost all the contents of the program. Teachers in elementary school and male teachers in middle school, who had attended the teacher training program and/or had implemented the program, were more likely to interest in nutrition education. The impact evaluation did not reveal any significant long-term effects on students; however, their dietary attitudes related to Educational Goal 2 ("eat a well-balanced diet considering its health benefits") improved after each year of participation in the program. More than 90% of the 8th grade students answered that they were happy to have participated in this program.Conclusion The continual implementation of this nutrition program increased teachers' interest in food and nutrition education and improved some dietary attitudes of students. Future challenges include improving program content, promoting continued implementation, and identifying broader approaches to include students' family and significant others from different generations.
Keywords: elementary and middle school; food and nutrition education program; impact evaluation; process evaluation.