Review of exclusive enteral therapy in adult Crohn's disease.

Background: Exclusive enteral nutrition (EEN) is a potentially effective but underused therapy for Crohn's disease (CD) in adults. It is first-line induction treatment for paediatric patients but remains a second-line or third-line therapy in adults.

Objective: To analyse the evidence for EEN in adult patients with CD, and summarise this in a narrative review.