This study was designed to explore relations of stressful and traumatic events with the onset of inadequate eating practices in adolescents, considering the presence of possible dissociative experiences. Three self-report questionnaires were administred to a Non-Clinical sample recruited in schools (N = 31, age 14-20 years), and to a Clinical Sample (N = 263, age 14-20 years): "Eating Attitude Test" (EAT-40, Garner, Garfinkel, 1979), "Adolescent Dissociative Experiences Scale" (A-DES, Armstrong et al., 1997), "Stressful and/or traumatic life-events invetory" (Wolfe et al., 1997; Giannantonio, 2005). The hypothesis of relations of dissociative experiences with maladaptive eating behaviors was confirmed particurarly with regards to bulimic symptoms. The subjects with Eating Disorders showed a significantly higher occurence of traumatic relational events it their life.