Foods play an important role for primary school children because school-age children try to develop personal independence and establish a measure of values. The aim of this study is to assess the behavior, direction and awareness of nutritional knowledge among students (boys and girls) in primary institutes in Al-Azhar, in addition to identifying their nutritional knowledge and the effects of nutritional knowledge among students and its impact on nutritional behaviors. behavior, to determine the quantity and quality of dietary intake. The nutritional status of the students was made for the convenience of the sample through anthropometric measurements such as weight, height, and body mass index. The current study includes some government institutes in Cairo and others in the Dakahlia government, which are classified as rural and urban governorates. Height and weight are measured for all students. The total number of students in this study was 516 students, including 218 boys and 298 girls. One questionnaire is used for students. The language of the questionnaire is Arabic. The average student age was 6.97. There is a lack of nutritional knowledge among the children of the institute. Knowledge of nutritional education is needed. Collaboration between parents and institutes to give a simple nutritional message to their children.