 Aims: Overall we aim to evaluate in a multidisciplinary way the effect of a mother supplementation during the lactation with high doses of DHA on the development and wellness of the premature newborn children. We try to deepen into the effect on the neuronal and visual development and to study, for the first time, the effect on the oxidative damage, pro- and antiinflammatory citoquines activity and bone metabolism in this group of newborn babies. 