This study is a randomized controlled trial comparing standard fortification of donor breast milk to targeted fortification of donor breast milk in preterm infants. The purpose of the study is to determine if there is a benefit to target fortifying donor breast milk in the preterm population. The investigators hypothesize that infants receiving targeted fortification of donor breast milk will have improved growth compared to infants receiving standard fortification of donor breast milk.
Premature infants born </= 30 weeks gestational age
Birth Weight </= 1500 grams
Parents do no consent to donor milk
Confounders for poor growth such as congenital heart disease, GI diagnoses such as gastroschisis and omphalocele, and or major congenital anomalies
Grade III or IV intraventricular hemorrhage diagnoses prior to randomization
Small for gestational age (<3% on Fenton Growth Curve)