The study was conducted on adolescent students in 4 schools of Misr El-Kadema educational directorate. It passed through three stages; the 1st was case finding survey (1551 students). The 2nd stage was case control study (151 excess weight cases & 151 normal weight controls). Third stage was intervention study where cases were randomized into 2 groups, an intervention group assigned to weight reduction program (WRP) with monthly follow up and a non intervention group assessed initially and at the end of 6 months. Overall prevalence of obesity was 11.6%, that for overweight was 18.6%. Cases had significant higher mean weight, waist, BMI, fat %, BMR, duration of TV watching and using computer than controls. They had significant higher monthly percapita income and consumed significant more fat and fast foods than controls. About three fourths of the intervention group had successful weight reduction while non of the nonintervention group had successful weight reduction by the end of 6 months.