1. Mohn Nutrition Research Laboratory, Department of Clinical Science, University of Bergen, Bergen, Norway
2. Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
3. Bevital AS, Bergen, Norway
4. Department of Clinical Science, University of Bergen, Bergen, Norway
5. Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
6. Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
7. Department of Medical Sciences, Uppsala University, Uppsala, Sweden
8. Department of Medicine, Haugesund Hospital, Haugesund, Norway
9. Department of Clinical Medicine, University of Bergen, Bergen, Norway
10. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
11. Joslin Diabetes Center, Harvard Medical School, Boston, MA