The development of a proper eating habit of young children is highly influenced by their parents, however the school can have a significant contribution as well. This paper is based on the role that the primary school plays in acquiring proper eating habit of young children with an emphasis on the role of the primary school teachers and school's canteen. The paper states certain food which can affect both physical and mental health of the children, also the paper states the content of a Science class textbook which is closely related with proper eating habit. The paper shows results of a research that has been done with 57 teachers from the Osijek and Slavonski Brod area. The aim of the research was to examine teachers on conducting classes on proper eating habit and to find out their opinion on the role of school in acquiring proper eating habit of young children and school kitchen menus of their schools. The results of the research show that most primary school teachers would change the menu of their schools, that all teachers conduct various activities on the topic of proper nutrition under the subjects of the Classroom Hour, and that most of them use various teaching aids when teaching about proper nutrition. Also, most of them believe that the family has a greater influence than the school in acquiring the proper eating habit of children of younger school age.