Adaptation of the Program to Educational Grade
The training content, means, and methods were adapted to the educational grade. In particular, two versions of the program were designed and tailor-made for 1st–3rd Grade and 4th–6th Grade. In younger students (i.e., 1st–3rd Grade) the story-telling educational approach was used based on a nutrition fairytale named “The Nutritional Adventures in the Land of Delicious Kingdoms”, which was designed in the context of the DIATROFI food aid and healthy nutrition promotion Program and approved by the National Institute of Educational Policy as well as the Ministry of Education and Religious Affairs. The students were asked to investigate “Delicious Kingdoms”—each one corresponding to one food group—and resolve the puzzle of healthy nutrition. In older students (i.e., 4th–6th Grade), interactive training sessions were delivered to the students. Practical assignments were provided in 60% of the training, including crossword puzzles, exercises that combined knowledge quizzes and movements, recall of favorite meals, etc. 