1. Department of Molecular and Clinical Medicine; Institute of Medicine; The Sahlgrenska Academy at Gothenburg University; SE-41345 Gothenburg Sweden
2. Department of Chronic Disease Prevention; National Institute for Health and Welfare; FI-00271 Helsinki Finland
3. Food Data Division; National Food Agency; SE-75126 Uppsala Sweden
4. Department of surgery; Institute of Clinical Sciences; The Sahlgrenska Academy at Gothenburg University; SE-41345 Gothenburg Sweden
5. Department of Surgery; University Hospital; SE-70185 Örebro Sweden
6. Nordic School of Public Health; SE-40242 Gothenburg Sweden
7. Institute of Neuroscience and Physiology; The Sahlgrenska Academy at Gothenburg University; SE-41345 Gothenburg Sweden