[Obesity in children. Current concerns]

In the last years there has been a growing interest in chilhood obesity in all developed countries. There is a great concern that is prevalence has raised 2-3 fold during the last 20 years. In the spanish chilhood population the obesity prevalence is estimated around 13%. Of note also, a number of other pathologies develop concomitantly with obesity during chilhood. These include type 2 diabetes, a range of respiratory problems, a metabolic syndrome, liver steatosis and seudotumor cerebri among others. Taking for granted that chilhood obesity in its roots is an exogenous disorder, preventive interventions should focus on modifying those ethiologies, improving the ways and nature of chilhood nutrition and its social and ludic behaviours.