Now-a-days, mass media is used worldwide among all age groups, from children to elders. Nutrition education is very important in decreasing the prevalence of increased screen time to enhance the lifestyle and health of children. To assess the impact of nutrition education on the knowledge, attitudes and practices (KAP) of school age female adolescents regarding use of media gadgets and excessive screen time and its effect on their sleep and health. Qausi-experimental study was conducted by using cluster sampling technique. A sample size of 108 female students aged between 10-15 years was selected from two schools in Lahore. Study duration was 6 weeks. A questionnaire was filled by all participants. Nutrition education was given to students in the time period of 4 weeks. Post-test questionnaires were filled after a gap of 1 week. Paired sample t-test was used to analyze data. Results showed that there was a significant association (p=0.001) between pre and post Knowledge, Attitude and Practice (KAP) among school age female adolescents. Results suggest that nutrition education programs that teach the importance of sleep and appropriate use of gadgets can improve the health and academic performance along with an increase in the nutritional knowledge of children as lack of awareness is the main concern.