The obesity prevalence rate continues to increase at the global level, and in Indonesia it is much higher than the international average. For Indonesian women, the obesity rate has doubled. Among children, boys have seen a greater increase than girls. This article discusses the influence of peers on obesogenic behavior in adolescents in the three provinces of Indonesia, namely, DI Yogyakarta, South Kalimantan, and Bali. The participants were high school students living in urban and rural areas. From each school, 100 participants were taken, for a total of 600 students. The findings show that obesogenic behavior in adolescents is influenced by several factors such as the intensity of friendship, having obese friends, and activities with friends