End-stage renal disease is often accompanied by malnutrition due to less appetite, metabolic changes or both. Human immunodeficiency virus-infection may exacerbate the state of malnutrition. In a pilot study, we recruit both HIV invected and non-infected patients on hemodialysis. Non-HIV patients will be randomized to peroral supplemental nutrition or no peroral supplemental nutrition. All HIV patients will receive peroral supplemental nutrition. The nutritional state will be determined in magnet resonance tomography at the start and at the end of the study (muscle diameter of triceps m.) and with laboratory parameters (plasma albumin and others). The hypothesis is that supplemental peroral nutrition (a total 250 kcal per day) will stop loss of muscle mass in end-stage renal disease patients (compared to their counterparts without supplemental peroral nutrition) as well as in the high risk group of HIV patients. This pilot study may lead to larger randomized clinical trials and, may affect dietary recommendations.