LEARNING OUTCOME: To identify how an oral elemental diet can safely and economically be used in a Crohn's disease.Traditional therapy in a severe exacerbation of Crohn's disease includes intensive nutrition support which is usually accomplished by total parenteral nutrition (TPN). This is a case report of a 59 year old male who had an exacerbation of Crohn's disease and was initially seen in the hospital prior to N discharge by a Registered Dietitian (RD) consultant provided by a dietitian-owned, certified home health care agency. He was receiving TPN and was expected to continue for 2 months on home TPN to provide for bowel rest and recovery. In the hospital, he was started on an oral elemental nutrition product per the consulting RD's recommendations. The oral supplement was initially to be used for two reasons:1) to provide stimulation to the GI tract to avoid gastric atrophy which is seen in patients on prolonged TPN and 2) to improve the patient's sense of well being by allowing him to consume some nutrients orally. After 1 day at home on TPN, an infection caused him to be readmitted to the hospital and the TPN stopped. Because the patient had already started on the oral elemental nutrition product as a supplement to his TPN, he was able to transition easily to using this as his sole source of nutrition. He was maintained on the oral elemental nutrition product at 8 cans per day for 30 days providing 2000 kcal and 125 grams of protein/day which was adequate to meet his requirements. He progressed well and after 20 more days was consuming a modified regular diet with the oral elemental nutrition product used as a supplement twice/day. A average day of home TPN costs at the minimum $300/day which over 60 days would be ~$18000. The costs for the oral elemental product instead of TPN was ~$2400, a savings of S15600. In addition, he was able to transition to an oral diet earlier than had he been on TPN. The RD provided this medical nutrition therapy in 3 patient visits.