Motivation for the study. The frequency of malnutrition in adult patients with grade V chronic kidney disease on hemodialysis at the High Complexity Hospital of La Libertad "Virgen de la Puerta" is unknown. Main findings. We found high frequency of malnutrition in hemodialysis patients (92.4%), with moderate/severe malnutrition predominating (72.4%). Implications. This study allows us to understand the situation of malnutrition in hemodialysis patients in order to initiate early nutritional intervention, in addition to providing important data that add to the available evidence. This was a cross-sectional observational study that aimed to determine the frequency of malnutrition in adult patients with stage V chronic kidney disease on hemodialysis. The sample consisted of 105 adult patients diagnosed stage V chronic kidney disease who received hemodialysis at the "Virgen de la Puerta" High Complexity Hospital in Trujillo, Peru. We applied the Malnutrition-Inflammation Score (MIS), 97 (92.4%) patients presented malnutrition, of which 20% had mild malnutrition, 37.1% had moderate malnutrition and 35.3% had severe malnutrition
only 8 patients (7.6%) presented normal nutritional status. In conclusion, we found a high frequency of malnutrition among patients diagnosed with stage V chronic kidney disease receiving hemodialysis.