A screening of Bulimia, an eating disorder associated to Obesity and Anorexia Nervosa, has been carried out in the city of Buenos Aires. The data were obtained by means of the questionnaire of Pope & Hudson, administered to young women who attend diet and physical activity programs. Control groups were constituted by female university students and boutique employees. The results indicate that diet and physical fitness searchers are groups at risk of Bulimia. It is concluded that proper preventive measures can be taken by informing and training the personnel, professional or not, in charge of those institutions, and also by promoting the adequate information within the population.