The obesity epidemic, the increasing occurrence of adult diseases in childhood, and the growing awareness of a connection between adult diseases and the diet of children and adolescents has led to increased interest in adolescents’ diet. However, there are many challenges in evaluating and addressing adolescents’ eating habits. The purposes of this study were: 1) to determine whether a school-based nutrition education intervention can improve food choice knowledge and eating patterns in middle and junion high school students, and 2) to determine if there is a significant difference between lecture, video, and lecture/video delivery methods in terms of behavior change of middle and junior high school students.