Intensive Care Department, MC 1425, College of Medicine, King Saud bin Abdulaziz University for Health Sciences (KSAU-HS), King Abdullah International Medical Research Center (KAIMRC), P.O. Box 22490, Riyadh, 11426, Kingdom of Saudi Arabia. arabi@ngha.med.sa. Laboratory and Clinical Department of Intensive Care Medicine, Catholic University Leuven, Leuven, Belgium. Royal Adelaide Hospital and University of Adelaide, Adelaide, Australia. Department of Critical Care Medicine, Queen's University, Kingston, ON, Canada. Anesthesiology and Intensive Care Medicine, Intensive Care Unit, Pasteur 2 Hospital, University Hospital of Nice, Nice, France. Division of Pulmonary and Critical Care Medicine, Eastern Virginia Medical School, Norfolk, VA, USA. Division of General and Gastrointestinal Surgery, Hospital Nutrition Services, Oregon Health and Science University, Portland, OR, USA. Department of Medicine, University of Louisville School of Medicine, Louisville, KY, USA. Department of Intensive Care, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium. Université de Nantes, Nantes, France. CHU de Nantes, Service de Médecine Intensive Réanimation, Nantes, France. Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA. Department of Intensive Care Medicine, Gelderse Vallei Hospital, Willy Brandtlaan, Ede, The Netherlands. Nutrition and Dietetics, Department of Internal Medicine, and Department of Intensive Care Medicine, VU University Medical Center, Amsterdam, The Netherlands. Department of Nutrition and Dietetics, School of Sports and Nutrition, Amsterdam University of Applied Sciences, Amsterdam, The Netherlands.