A significant scientific study led by researchers from the Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, in collaboration with Imperial College London (UK) and the Public Health Foundation of India, has found that school-based programs can effectively lower junk food intake among adolescents. The findings, published in the international journal BMJ Global Health, are particularly relevant for India, which is experiencing a rapid rise in childhood obesity, diabetes, and heart disease risks. The cluster-randomized controlled trial, conducted across 12 government schools in Chandigarh, involved Grade 8 students and their parents. The intervention included 11 structured nutrition and behavior-change sessions for adolescents over six months, complemented by a single educational session for parents to raise awareness about the harms of ultra-processed foods (UPFs) and promote healthier choices at home. Results demonstrated a marked decline in junk food consumption among participating students, who reduced their intake of UPFs (such as packaged snacks, sugary drinks, and fast food) by over 1,000 calories per day. Consumption of other processed foods also dropped by approximately 270 calories daily, indicating a clear shift away from unhealthy dietary patterns. While the study successfully proved the potential of school-based behavioral interventions to reduce UPF consumption in Indian adolescents, it also highlighted a limitation: there was no significant increase in the consumption of fruits or home-cooked foods. This suggests that while reducing unhealthy food intake is achievable, fostering healthy eating habits may require more sustained and targeted efforts. The research addresses a crucial need in public health practice within low- and middle-income countries.