Postgraduate Program in Health Sciences, Faculty of Medicine, Federal University of Goias, Goiânia 74605-220, Goias, Brazil. Affiliate Academic at the Department of Epidemiology & Public Health, Institute of Epidemiology & Health Care, University College London, London WC1E 6BT, UK. Faculty of Physical Education, University of Brasília, Darcy Ribeiro University Campus, Brasília CEP 70910-900, Distrito Federal, Brazil. School of Social Sciences and Health, Nutrition Course, Pontifical Catholic University of Goias, Goiânia 74605-020, Brazil. Department of Epidemiology & Public Health, University College London, London WC1E 6BT, UK.