Source and Quality of Enteral Nutrition Influences Oxidative Stress in Preterm Infants: A Prospective Cohort Study.

Quality and source of EN seem to influence oxidative stress in preterm infants. The underlying pathophysiological mechanism is unclear and needs further investigation. It may be speculated that other mechanisms than Fe supplementation contribute to oxidative stress, such as cow's milk protein-mediated up-regulation of the intestinal inflammatory cascade.