A guest lecturer on the ever-present topic "Healthy Nutrition and Sports Nutrition" was Lazar Toskić. The topic was adapted to the age and the students could participate in an interactive way, they could revise the subject and learn something new. In the sensitive period of growing up, it is important to make a good foundation of knowledge in this area in order to be successful in selecting nutritious foods and be aware of how a balanced diet is important in the development of adolescents.