1. Dr. Sawaya and Ms. Martins are with the Departamento de Fisiologia, Disciplina de Neurofisiologia e Fisiologia Endócrina, Universidade Federal de São Paulo, Rua Botucatu 862, 2nd floor, São Paulo, Capital, Brazil, CEP: 04023-060.
2. Dr. Hoffman is with the Department of Nutrition Science, Cook College, Rutgers University, New Brunswick, NJ 08901, USA.
3. Dr. Roberts is with the Human Nutrition Research Center on Aging, Tufts University, 711 Washington St, Boston, MA 02111, USA.