Background: In 2006, the prevalence of overweight and obesity combined in scholar and adolescents in Mexico was 26% and 31% respectively, which represents more than double of that reported in year 2000. Together with such increments in the obesity rates, it was observed similar increases in the incidence of other metabolic conditions such as insulin resistance (IR). In a very simplistic manner, it seems that the link between obesity and IR is a chronic inflammatory status because the adipose tissue-derived inflammatory molecules interfere with the uptake of fatty acids and glucose in peripheral tissues.