What do systematic reviews say?

Fish oil lipid emulsion (LE) vs S‐LE

All fish oil containing LE showed no clear difference in bronchopulmonary dysplasia/chronic lung disease compared with S‐LE (low certainty).

• Alternative lipid emulsions versus pure soy oil based lipid emulsions for parenterally fed preterm infants 2015 · Cochrane Headline outcomes only
  RR 1.02 [0.7, 1.5]
  4 studies · 341 participants
  Low