[Food allergies and intolerances in children].

Allergies and food intolerance together comprise the manifestations of "adverse food reaction". The best known and most common are: allergy to cow's milk proteins (prevalence 0.5% to 7.5%), intolerance to lactose (prevalence after weaning 5 to 100%) and gluten intolerance (prevalence 0.5%). Treatment of these conditions is based on management of the diet by exclusion (or reduction) of the responsible food or antigen.