1. Institute of Public Health and Clinical Nutrition, Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
2. Epigenetics and Diabetes Unit, Department of Clinical Sciences, Lund University Diabetes Centre, Malmö, Sweden
3. Department of Surgery, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
4. Clinical Nutrition and Obesity Center, Kuopio University Hospital, Kuopio, Finland