Growth and Weight Gain in ELBW Infants Fed an Exclusively Human Milk Based Diet With Prolacta®

Preterm infants are susceptible to postnatal growth restriction. Breast milk is the recommended source of nutrition for preterm infants. As preterm infants have enhanced nutritional requirements, multicomponent fortifiers are added to breast milk in order to establish adequate growth. Due to the various benefits of human milk feds to preterm infants, a human milk fortifier based on donor milk (Prolact+6 H2MF® Prolacta, City of Industry, California) has been developed. With this study, the investigators want to evaluate the effect of human milk fortification on weight gain in extremely low birth weight infants (ELBW, \<1000g birth weight) in comparison to bovine fortification.