In this study, students aged 12–15 will be given a healthy nutritional education programme, and their health status will be assessed (BMI, total body water, haemoglobin percentage in the blood). The programme was designed with two groups, one experimental and the other control. The results of the research showed that the programme has a positive effect on nutritional behaviour for second-year middle school students and that the experimental group outperformed the control group in post-measurement improvements in food behaviour axes. The nutritional cultural educational programme also improved students' body composition (BMI, fat cell mass, non-fat cell mass, total body water mass, and body fat percentage) (experimental group). The experimental group did better than the control group when it came to how well they did after they were measured compared to how well they did before they were measured.