FrieslandCampina WAMCO Nigeria Plc, Industrial Estate, Plot 7b Acme Rd, Ogba, Ikeja, Lagos 100001, Nigeria. Division of Human Nutrition and Health, Wageningen University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands. Department of Paediatrics and Child Health, Paediatric Gastroenterology, Hepatology and Nutrition Unit, Lagos State University College of Medicine, Ikeja, Lagos 100001, Nigeria. Department of Pharmacology, Therapeutic and Toxicology, Lagos State University College of Medicine, Ikeja, Lagos 100001, Nigeria. NIZO Food Research B.V., 6718 ZB Ede, The Netherlands. FrieslandCampina, P.O. Box 1551, 3800 BN Amersfoort, The Netherlands. Department of Human Nutrition, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan 200005, Nigeria.