1. School of Nutrition Science, University of Milan, 20133 Milan, Italy
2. Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy
3. Laboratory of Clinical Studies on Obesity, Istituto Auxologico Italiano IRCCS, 20145 Milan, Italy
4. Oxford Liver Unit, Department of Gastroenterology and Hepatology, Oxford University Hospitals NHS Foundation Trust, Oxford OX3 9DU, UK