Much has been done to improve neonatal care e.g. target levels for oxygen saturation has been an issue for extensive discussions and clinical trials. In fact, the optimal oxygen saturation level for preterm infants has been called "a moving target", fluctuating almost as much as our patients oxygen saturation levels. Reaching a consensus on what these levels should be is still a work in progress. Nutrient delivery is another important and central area of neonatal care which is closely associated with morbidity outcome, and is in need of evidence-based guidelines. The project therefore aims to improve nutrient delivery to prevent or reduce the development of preterm disabilities.