The article reviews publications devoted to the issue of optimization of nutrition of children and adolescents including school nutrition, various ways of formation of eating habits, succession of home and school nutrition, nutrition of children with alimentary-dependent diseases and children who go in for sports, quality of raw materials and products for school nutrition, and nutrition using new products. The information was searched for with eLIBRARY.RU, PUBMED, Web of Science and Scopus information portals and platforms from 2007 to 2021. Publications related to the issue were assessed while studying at school and during distance learning. Modern issues of nutrition of schoolchildren such as disturbances of alimentary behavior and underdeveloped skills of nutritional culture, dietary habits of schoolchildren with alimentary-dependent diseases and approaches to nutrition optimization at educational institutions are highlighted. The ways of prevention of alimentary-dependent diseases are estimated by way of inclusion of functional products into the diet of schoolchildren. Principal methodical and regulatory documents that can help reduce risks of alimentary-dependent diseases are mentioned. Pressing trends of researches regarding the reviewed topic were suggested to preserve health of schoolchildren as far as healthy nutrition goes.