1. From the Laboratory for Human Nutrition, Swiss Federal Institute of Technology Zürich, Zürich, Switzerland (MBZ, CZ, and RFH); the Thalassemia Research Center, Institute of Science and Technology for Research and Development (SF and PS) and the Institute of Nutrition (PW, SG, and KJ), Mahidol University, Salaya, Nakon Pathom, Thailand; and the Molecular Medicine Branch, National Institute of Diab