A researcher in sociology at IRISSO (Paris-Dauphine University, PSL Research University, CNRS, INRA), Marc-Olivier Déplaude initially worked on health policies and the medical profession. He is currently conducting surveys on the large-scale agri-food processing industries, the criticisms and mobilizations they provoke, and the way in which they respond to them. He recently published La hantise du nombre. Une histoire des numerus clausus de médecine (Paris, Les Belles Lettres, 2015), and “Minimizing dietary risk: The French association of salt producers and the manufacturing of ignorance”, (Health, Risk & Society, 2015, vol. 17, n ° 2).