RÉSUMÉ
@#<p style="text-align: justify;">Despite the existing campaigns on obesity prevention, there's still high incidence which can lead to complications. This study determined the effectiveness of obesity prevention campaign (OPC) among adolescents, and the difference according to sex and groups. Aquasi-experimental time-series design was used. The participants were 56 Grade 7 high school students from Baguio City, randomly chosen through one-stage cluster sampling, assigned in the interventions groups, assessed using a self-made questionnaire, introduced with OPC and reassessed for three weeks. Frequency percentages and Chi-square were utilized. The brochure plus health teaching is an effective OPC. There is a significant difference in BMI according to sex of the adolescents. The OPC yielded effective results in the physical aspects for both groups. Repeated campaign can produce a successful effect in preventing obesity among adolescents. Utilization of either the brochure alone or brochure with health teaching is enough to create a successful change.</p>