1 From Clinical Nutrition and Metabolism, Department of Public Health and Caring Sciences, Uppsala University, Uppsala (T.C.), Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm (T.C.), Theme Inflammation and Aging, Medical Unit Aging, Karolinska University Hospital, Stockholm (T.C.), and the Department of Internal Medicine and Clinical Nutrition, University of Gothenburg, Gothenburg, and the Clinical Nutrition Unit, Sahlgrenska University Hospital, Gothenburg (I.B.) - all in Sweden.