1. Graduate Progam in Nutrition Federal University of Rio Grande do Norte Natal Brazil
2. Department of Nutrition Federal University of Rio Grande do Norte Natal Brazil
3. Institute of Biomedicine for Brazilian Semiarid, Faculty of Medicine Federal University of Ceará Fortaleza Brazil
4. Department of Public Health Purdue University West Lafayette Indiana USA
5. Department of International Health, Center for Human Nutrition The Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA