1 WHO Collaborating Centre for Public Health Aspects of Musculo-skeletal Health and Aging, Division of Public Health, Epidemiology and Health Economics, University of Liège, Liège, Belgium; Geriatrics Department, Rehabilitation Research Group, Hospital Del Mar Medical Research Institute (IMIM), Universitat Pompeu Fabra, Barcelona, Spain. Electronic address: dolores.sanchez@uliege.be.
2 University Centre for Geriatrics, ZNA (Ziekenhuis Netwerk Antwerpen), Antwerp, Belgium. Electronic address: stany.perkisas@zna.be.
3 Human Nutrition Research Unit, Faculty of Agricultural, Life and Environmental Sciences, Agriculture, Food & Nutritional Sciences Department, University of Alberta, Canada. Electronic address: carla.prado@ualberta.ca.
4 Center for Translational Research in Aging & Longevity, Department of Health and Kinesiology, Texas A&M University, College Station, TX, USA. Electronic address: nep.deutz@ctral.org.