1. Dietetic Department Leeds Teaching Hospitals NHS Trust Leeds UK
2. Norwich Medical School University of East Anglia Norwich UK
3. Faculty of Health and Human Sciences Peninsula Schools of Medicine and Dentistry Plymouth UK
4. Department of Endocrinology Plymouth Hospitals NHS Trust Plymouth UK
5. Department of Upper GI and Bariatric Surgery, Musgrove Park Hospital Taunton and Somerset NHS Foundation Trust Taunton UK
6. Fakenham Weight Management Service Fakenham Medical Practice Fakenham UK
7. Centre for Obesity Research, Rayne Institute, Department of Medicine University College London London UK
8. School of Biosciences Sutton Bonington Campus, University of Nottingham Nottingham UK
9. Department of Nutrition and Dietetics Portsmouth Hospitals NHS Trust Portsmouth UK
10. Specialist Weight Management Service Betsi Cadwaladr University Health Board Wales UK
11. Population Health Sciences Bristol Medical School. University of Bristol Bristol UK
12. Obesity and Bariatric Surgery Service Southmead Hospital, North Bristol NHS Trust Bristol UK
13. Freelance Dietitian Somerset UK
14. Bariatric Centre for Weight Management and Metabolic Surgery, UCLH University College London Hospital (UCLH) London UK
15. National Institute of Health Research UCLH Biomedical Research Centre London UK
16. Department of General Surgery Sunderland Royal Hospital Sunderland UK
17. Department of Clinical Biochemistry & Bariatric Surgery Homerton University Hospital NHS Trust London UK
18. Department of Life Sciences Brunel University London UK
19. Department of Medicine Imperial College London UK
20. Patient Representative Edinburgh UK
21. Department of Chemical Pathology & Metabolic Medicine Leeds Teaching Hospitals NHS Trust Leeds UK