Manullang, M.A., Nur Intania Sofianita, M. Ikhsan Amar and Syah, M.N.H. 2025. The Effect of Nutrition Education Using Leaflet and Video Media on Increasing Knowledge of Balanced Nutrition in Adolescents at SMA Negeri 2 Lintongnihuta. Indonesian Journal of Nutritional Science. 2, 1 (May 2025). DOI:https://doi.org/10.52023/ijns.v2i1.4736.