In end-stage renal disease (ESRD), cachexia is a common finding. Metabolic changes, malnutrition, or both appear to be the underlying problems. In fact, lean body mass per body weight better predicts prognosis than creatinin based models (NDT, 2004.19:1182). In addition, comorbidity such as HIV infection may exacerbate cachexia found in ESRD. Whether or not daily supplemental, high-caloric nutrition in ESRD corrects a catabolic state in ESRD is unclear.