He teaches at the University of Turin, the University of Eastern Piedmont, the Naples Federico II University and the University of Messina. He is a long time member of the European Food Safety Authority (EFSA) and the official diet doctor for the Juventus F.C. team. He is a consultant for Uno mattina, Porta a Porta, Linea blu and TG2 Salute. He writes for La Stampa, Corriere della Sera, La Repubblica, Famiglia Cristiana and collaborates with numerous weeklies. Besides the books he has written with his wife, Caterina, he has written, among others, L’inganno delle diete: errori e rischi delle diete più famose e consigli per ritrovare forma e benessere (Piemme, 2009) and, with Paola Vinciguerra, Stress & dieta (Kowalski, 2012).