In the field of catering services for schools and institutes, this concerns the provision of a traditional diet for children and adolescents, giving scientific advice for the preparation of these special diets, with special attention paid to children affected with overweight and obesity. In turn, the knowledge of this group on mineral metabolism disorders, osteoporosis and the major contribution of genetics, calcium and vitamin D, the consumption of dairy products and the role of the dairy product industry, must be reinforced with the opinion of specialists in endocrinology who are up to date in this field