[Study of the prevalence of overweight and obesity in a spanish prison].

Background: Overweight and obesity are a worldwide health problem. There are few researches about the prevalence of these conditions in penitentiaries; that is why this study aims at determining prevalence in a sample of inmates at a Spanish penitentiary.

Methods And Materials: 122 inmates from a Spanish penitentiary volunteered for this research in which 99 were men (81.