[ABSTRACT] Obesity is considered as one of the most outstanding eating problems due to: (1) the high prevalence in the population in our country, around the 13,4%, being more frequent among females than males (15,2% for females and 11,5% for males); these frequency increases with age (Serra Majem & Salleras Sanmartín, 1999); and (2) obesity is an important risk factor in different diseases such as hypertension, respiratory and cardiovascular disorders, diabetes, etc.In the present paper a c