The goal of this cluster randomized controlled pilot trial is to assess the feasibility and effect of a school-based nutrition intervention program called Nutrition Goes to School (NGTS) in improving a healthy diet and physical activities as part of the prevention and management of obesity among adolescents in urban Indonesia. The main questions it aims to answer concern the feasibility of the NGTS multi-component school-based nutrition intervention model in selected secondary schools in an urban setting to inform the design of the future effectiveness study. Additionally, it aims to evaluate the effect of the school-based nutrition intervention in the healthy eating knowledge and behavior (fruit and vegetable consumption, energy-dense nutrient poor food, and sugary beverages consumption, as measured by food frequency questionnaire) and physical activities as well as its effect on nutrition status (body mass index, mid-upper arm circumference \[MUAC\] and waist circumference). The intervention components consist of nutrition education to school communities (teachers, management, students and parents), healthy school canteen, school garden, hygiene and sanitation promotion of the school environment and obesogenic environment control, and promotion of physical activities among students. Five secondary schools in Jakarta will be randomly assigned to receive the intervention for 6 months, and five other schools will serve as the control group.