iStart Smart for Teens for Healthy Weight Management

Participants will be asked to wear the Fitbit device and use the app every day for three months. The app functions will include tracking of PA and dietary intake progress, setting individualized and realistic goals, monitoring progress related to reaching the goals, providing tips of everyday activities, and having interactive games related to PA and healthy diet.

adolescents in the control group will be given an Omron HJ-105 pedometer and a food diary and be asked to use them for three months.