Prescription of enteral nutrition on the first day of invasive mechanical ventilation increased from 38% before to 54% after (P = .03) implementation of the protocol. Prescribed and delivered nutrition doses on the first 2 days of mechanical ventilation also increased significantly (P < .001) after the protocol was implemented. Nasojejunal feeding tubes were used in 52% of patients before and 56% of patients after protocol implementation P = .63).