Introduction: The expansion of eating behavior disorders (EBD) has made it necessary to carry out the work of detecting cases as well as explaining this phenomenon as much as possible with certain features of the subjects and the behavior habits, for example, the practice of sports.
Method: A total of 740 students between 12 and 16 years old, whose sport's activity was investigated, filled out the Eating Disorders Inventory (EDI). Part of this sample, specifically 180 subjects, also answered the recently made Physical Self-concept Questionnaire (PSQ).
Results: Prevalence rates of EBD greater than those found in previous studies are found; the risk of EBD has an inverse relationship with the practice of sports and a direct one with low score on the PSQ.
Conclusions: Physical and sport education should have a decisive role in the prevention of EBD; educators must be provided guidelines and resources that can help them in this task.