Optimal nutrition is meant to prevent deterioration of mental and physical functions as well as health or treatment complications and to shorten convalescence. The purpose of the «Nutritional Risk Screenings» (NRS) is to detect any existing malnutrition or risk of malnutrition during hospitalization. If the initial screening is abnormal, the final screening is performed. NRS is recommended by the «European Society for Clinical Nutrition and Metabolism» (ESPEN) for all hospitalized patients [1].