1. Diabetes and Nutritional Sciences Division; King's College London (KCL); London UK
2. Department of Nutrition and Dietetics; Guy's and St Thomas' NHS Foundation Trust (GSTFT); London UK
3. National Institute for Health Research (NIHR) Comprehensive Biomedical Research Centre at GSTFT and KCL; London UK
4. King's College London Dental Institute; London UK
5. Department of Gastroenterology; GSTFT; London UK