www.mnf-journal.com Page 1 Molecular Nutrition & Food Research Received: 25/04/2016; Revised: 20/07/2016; Accepted: 19/08/2016 This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1002/mnfr.201600358. This article is protected by copyright. All rights reserved. Plasma trimethylamine-N-oxide following supplementation with vitamin D or D plus B-vitamins Rima Obeid 1,2 , Hussain M. Awwad 1 , Susanne H. Kirsch 1 , Christiane Waldura 1 , Wolfgang Herrmann 1 , Stefan Graeber 3 , and Juergen Geisel 1 1 Saarland University Hospital, Department of Clinical Chemistry and Laboratory Medicine, building 57, D-66421 Homburg/Saar, Germany; 2 Aarhus Institute of Advanced Studies, University of Aarhus, Høegh-Guldbergs Gade 6B, building 1632, Dk-8000, Aarhus C, Denmark; 3 Saarland University, Institute of Medical Biometry, Epidemiology and Medical Informatics, Building 86, D-66421 Homburg/Saar, Germany. *Author for correspondence: Aarhus Institute of Advanced Studies, University of Aarhus, Høegh-Guldbergs Gade 6B, building 1632, Dk-8000, Aarhus C, Denmark. Tel: +45-87153652, email: rima.obeid@uks.eu