With the enactment of the Basic Law on "Shokuiku" (Food Education), educators have become more active in promoting food education to children. Because the system in the previous study only stored the contents of one day's meals, the acquired data was not reliable. In this study, we developed a food education support system with an additional function to input the contents of meals for 3 days and conducted a survey of the contents of meals for 3 days for high school students. The results showed that there was no significant difference in the effect of food education between the presentation of only one day's worth of nutritional evaluation and that of three days' worth, but the subjects felt that the presentation of three days' worth of nutritional evaluation was a better function, and that it was a function that they referred to.