Department of Nutrition and Dietetics, Harokopio University, 17671 Athens, Greece. Department of Movement and Sports Sciences, Faculty of Medicine and Health Sciences, Ghent University, B-9000 Gent, Belgium. Department of Public Health Solutions, National Institute for Health and Welfare, 00300 Helsinki, Finland. Department of Paediatrics, Medical University Varna, 9010 Varna, Bulgaria. Department of Diabetology, Clinical Center of Endocrinology, Medical University Sofia, 1431 Sofia, Bulgaria. Department of Family and Occupational Medicine, University of Debrecen, 4032 Debrecen, Hungary. Instituto Investigacion Sanitaria Aragon (IISA), CIBERCV, 50009 Zaragoza, Spain. Growth, Exercise, NUtrition and Development Research Group, School of Health Science (EUCS), University of Zaragoza, 50009 Zaragoza, Spain. First Department of Propaedeutic Medicine, Medical School, Laiko General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece. Department of Nutrition and Dietetics, School of Physical Education, Sport Science and Dietetics, University of Thessaly, 42132 Trikala, Greece.