Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences, Groningen, the Netherlands; Division of Human Nutrition, Wageningen University and Research, the Netherlands; FrieslandCampina, PO Box 1551, 3800 BN, Amersfoort, the Netherlands. Division of Human Nutrition, Wageningen University and Research, the Netherlands. Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences, Groningen, the Netherlands; Faculty of Mathematics and Natural Sciences, University of Groningen, Groningen, the Netherlands. Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences, Groningen, the Netherlands; Faculty of Medical Sciences, University Medical Center Groningen, Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department Of Rehabilitation Medicine, Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department Of Health Psychology Research, Groningen, the Netherlands. Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences, Groningen, the Netherlands; University of Groningen, University Medical Center Groningen, Department of Maxillofacial Surgery, Groningen, The Netherlands. FrieslandCampina, PO Box 1551, 3800 BN, Amersfoort, the Netherlands. Electronic address: ellen.vandenheuvel@frieslandcampina.com.