1 Department of Nutritional Science, School of Life Course Sciences, King's College London, London UK.
2 School of Psychology, and Scaled Insights, Nexus, University of Leeds, Leeds, UK.
3 Department of Mathematical Sciences, US Military Academy, West Point, NY, USA.
4 Department of Diabetes, School of Life Course Sciences, King's College London, London UK; Bariatric/Metabolic Surgery, King's College Hospital, London, UK. Electronic address: Francesco.rubino@kcl.ac.uk.