“…Instituting a regimen of appropriate diet and physical activity in a purely nutritional approach to the obesity problem, which represents the patient's main concern, and to the related metabolic syndrome, has produced only modest shortterm results. Administration of weight-reducing-related drugs (topiramate, sibutramine, d-fenfluramine, orlistat) to reduce excessive food consumption, obesity and the metabolic syndrome brings about temporary small weight losses and frequent relapses, with persistence of the psychopathological aspects of the disease representing a stimulus for the maintenance of the eating disorder (Stunkard et al, 1996;Richard et al, 2000;Shapira et al, 2000;Appolinario et al, 2002aAppolinario et al, , 2002bAppolinario et al, , 2003Carter et al, 2003;Mitchell et al, 2003;McElroy et al, 2003aMcElroy et al, , 2004McElroy et al, , 2005De Bernardi et al, 2005;Fitchet, 2005;Grilo et al, 2005;Loew et al, 2006). Psychotherapy, with cognitive behavioural therapy (CBT) or interpersonal therapy (ITP), has proved effective in the short term, that is, it reduces impulsive-compulsive binge-eating frequency and severity and improves the psychopathologies specific to the disorder in the short term; however, it is less effective in the long term and in improving overweight and related metabolic alterations (Telch et al, 1990;Fairburn and Cooper, 1993;Wilfley et al, 1993Wilfley et al, , 2000Wilfley et al, , 2002Agras et al, 1994Agras et al, , 1995Agras et al, , 1997Carter and Fairburn, 1998;Fichter et al, 1998;McElroy et al, 2000;Nauta et al, 2000;Arnold et al, 2002;Marchesini et al, 2002;Zhou and Walsh, 2002;Carter et al, 2003;…”