1. Graduate Program in Medical Sciences: Endocrinology, Department of Internal Medicine, Faculty of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS) , Porto Alegre, RS, 90035-000 , Brazil
2. Faculty of Nutrition and Food Sciences, Universidade Federal do Rio Grande do Sul (UFRGS) , Porto Alegre, RS, 90035-000 , Brazil
3. Faculty of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS) , Porto Alegre, RS, 90035-000 , Brazil
4. Division of Endocrinology and Metabolism, Hospital de Clínicas de Porto Alegre (HCPA) , Porto Alegre, RS, 90035-903 , Brazil