FITOC is an interdisciplinary treatment program for obese children that has been established in Freiburg since 1987. Obese kids, ages 8-11, are treated in an 8-month intensive period and a follow-up period of 4 months or more. Since 1990, data from 283 kids in 15 treatment groups (about 2 groups per year) have been collected and analyzed. The program consists of regular physical training (3 times a week), and comprehensive nutrition and behavior training (overall 7 parents evenings every 4 to 6 weeks and 7 cookery courses for the kids in the same timescale). The parents evenings are filled with theoretical and practical information about nutrition as well as background information about the psychological and physiological problems of obese children. In the first examination and the regular control examinations, anthropometric, biochemical, and exercise physiology data are investigated. In addition, questionnaires on nutrition and behavior are filled out on a regular basis. At each examination, depending on the progress in therapy, a new orientation with adapted goals is discussed with the child and the parents. For the growing kids, moderate reduction or long-term stabilization of weight will lead to success. The teaching goal for the children in the intensive period is to control themselves and, depending on their specific situation, to establish individual recommendations on a long-term basis. The sports program should lead to an increase in self-esteem and an increase in daily energy expenditure. The team includes a physician, a nutritionist, a psychologist, and a sports teacher. Since 1997, the program has spread to institutions in the Freiburg area. Training for the external teams is done by continuous seminars. Teaching material includes a manual, forms, and transparencies. The major goal is to secure quality by continuous training and close interaction between the institutions. Till now, the program has been performed by a couple of multiplication groups in different regions of Germany. First data analysis showed that the out-patient program is transferable, and comparable results are reachable after a standardized training course for participating therapists. The plan for 2000 and 2001 is to increase the number of centers involved to a total of 20 over all of Germany.