1 From HarvestPlus, International Center for Tropical Agriculture (CIAT), Cali, Colombia (EFT, e-mail: elisetalsma@gmail.com); the Division of Human Nutrition (IDB and AM-B) and the Cell Biology and Immunology Group (HV), Wageningen University, Wageningen, Netherlands; the Medical Research Council (MRC) International Nutrition Group, London School of Hygiene and Tropical Medicine, London, United Kingdom (HV); MRC Keneba, Keneba, The Gambia (HV); Applied Nutrition Program, Department of Food Technology and Nutrition, University of Nairobi, Nairobi, Kenya (GNKM); the Laboratory for Clinical Chemistry, Meander Medical Center, Amersfoort, Netherlands (AYD); HarvestPlus, International Food Policy Research Institute, Washington, DC (EB); and the Human Nutrition Laboratory, Institute of Food, Nutrition, and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland (MBZ).