Sorbonne Paris Nord University, INSERM U1153, INRAE U1125, CNAM, Nutritional Epidemiology Research Team (EREN), Epidemiology and Statistics Research Center, Centre of Research in Epidemiology and Statistics, Université Paris Cité, Paris, France; NACRe Network-Nutrition and Cancer Research Network, Jouy-en-Josas, France. INSERM U1016, Mucosal microbiota in chronic inflammatory diseases, CNRS UMR 8104, Université de Paris, Paris, France; NACRe Network-Nutrition and Cancer Research Network, Jouy-en-Josas, France. INSERM U1016, Mucosal microbiota in chronic inflammatory diseases, CNRS UMR 8104, Université de Paris, Paris, France; NACRe Network-Nutrition and Cancer Research Network, Jouy-en-Josas, France. Electronic address: benoit.chassaing@inserm.fr.