1 Radboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Nijmegen, the Netherlands.
2 Radboud Institute for Molecular Life Sciences, Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands.
3 Department of Internal Medicine, Jeroen Bosch Hospital, 's-Hertogenbosch, the Netherlands.
4 Division of Human Nutrition, Wageningen University, Wageningen, the Netherlands.
5 Radboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Nijmegen, the Netherlands dick.thijssen@radboudumc.nl.
6 Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, U.K.