Registered dietitians served with US Army hospitals in Port-au-Prince, Haiti as part of multi-national operations during the UNMIH. As the sole military nutrition expert in Haiti, the Army dietitians served in a multitude of advisory functions. They served as hospital food service director, clinical dietitian, and the expert on nutrition issues and humanitarian food relief efforts. Army dietitians ensured adequate nutrition for patients and staff. The patient population included US and UN soldiers as well as UN civilians and Haitians. Outpatients from ten different countries were counseled for diagnoses such as diabetes and hyperlipidemias. Interpreters were often used during nutrition counseling. Patient meals were 65% regular diets with the majority of modified diets as clear liquids or no pork. Army dietitians influenced menu selections for the 2000 US soldiers in Haiti. Additionally, two Malaysian rations were evaluated for nutritional content and acceptability for UN soldiers. Each ration contained 1500kcals, 50g protein with 17% kcals from non-nutrient dense sources such as creamer and sugar. Three rations supplemented with fruit or fruit drink were recommended per day based on the US Military Recommended Dietary Allowances. Dietitians participated in humanitarian assistance by coordinating the donation of nutrition supplements, rice sugar, cereal, tea, and other staples to qualified Haitian organizations. Site visits were made to the Outreach Mission and St. Catherine Laboure Hospital, both located in Cite Soleil, one of the poorest slums in the Western Hemisphere. Other site visits included University Hospital, Albert Schweitzer Hospital, and a children's hospital in Petionville. UN and US officials relied upon the Army dietitian's expertise in feeding a multi-national force during military and humanitarian operations.