We have previously demonstrated that WT and Rag deficient offspring born to mHFD dams had an increased susceptibility to an established model of necrotizing enterocolitis (NEC) which was partially blocked with IL-17A antibody, strongly suggesting that the injury is likely due to the expanded IL-17+ve ILC3, and not Th-17 cells (2). This evidence concerns the gene IL17A and necrotizing enterocolitis.