1. Department of Family and Occupational Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
2. Doctoral School of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
3. Department of Health Informatics, Faculty of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
4. Department of Movement and Sports Sciences, Ghent University, B-9000 Ghent, Belgium
5. Department of Social Medicine and Health Care Organization, Medical University of Varna, 9002 Varna, Bulgaria
6. Department of Paediatrics, Medical University of Varna, 9002 Varna, Bulgaria
7. Department of Public Health and Welfare, Finnish Institute for Health and Welfare, FI-00271 Helsinki, Finland
8. Department for Prevention and Care of Diabetes, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, 01062 Dresden, Germany
9. Paul Langerhans Institute, Dresden of Helmholtz Zentrum München, University Hospital and Faculty of Medicine, 01307 Dresden, Germany
10. German Center for Diabetes Research, 40225 Neuherberg, Germany
11. Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, 17671 Athens, Greece
12. First Department of Propaedeutic Medicine, Athens Medical School, National and Kapodistrian University, Laiko General Hospital, 11527 Athens, Greece
13. Growth, Exercise, Nutrition and Development (GENUD), Research Group, University of Zaragoza, 50009 Zaragoza, Spain
14. IBER, Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, 28222 Madrid, Spain
15. Hungarian Society of Nutrition, 4002 Budapest, Hungary
16. Department of Family Medicine, Semmelweis University, 1085 Budapest, Hungary