Patients with endstage liver disease characteristically are malnourished which is associated with poor outcome. Formulas enriched with arginine,ω3 fatty acids, and nucleotides potentially improve their nutritional status. This randomized placebo-controlled double blind multicenter clinical trial with longterm preoperative supplementation with such an enriched formula will evaluate evaluate effects of such formulas on patients' quality of life, survival, and posttransplant morbidities.