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Revista Española de Nutrición Humana y Dietética

On-line version ISSN 2174-5145Print version ISSN 2173-1292


MARTINEZ-MATSUMOTO, Pilar et al. Risk of malnutrition and oral nutritional support in a cohort of hospital inpatients. Rev Esp Nutr Hum Diet [online]. 2022, vol.26, n.2, pp.147-155.  Epub Dec 12, 2022. ISSN 2174-5145.


The disease-related malnutrition is considered a serious problem since it is strongly related to higher mortality rates, longer hospital stays, and increased costs for medical care. A highly associated risk factor has been the decreased oral intake during the hospital stay; however, the use of oral nutritional supplements allows to heal the malnutrition burden having positive results. Objective: To evaluate the hospital malnutrition risk and the oral nutritional supplements effect for 4 days in anthropometric variables, energy, and protein intake in hospital inpatients.


A cohort study, in a third-level hospital in which within the first 24 hours of the admission, the malnutrition risk was assessed (NRS-2002), the prescribed oral nutritional supplements, its follow-up during a 4-day consumption and its impact on weight, body mass index and muscle strength estimated by dynamometry were analyzed; additionally, the nutritional intake (energy and proteins) was assessed.


A total of 290 patients (167W/123M) were assessed, with an average age of 54.7±17.3 years. The malnutrition risk prevalence at hospital admission was 50.3% and from the total patients, 10.3% (n=30) received oral nutritional supplements. After the consumption of oral nutritional supplements, an increased energy consumption was shown in those with a >50% adherence during the 4 days; we found an increased energy adequacy percentage of 73.6±33 to 101±32 (p=0.003) and protein adequacy 75.8±45 to 108±58 (p=0.016), with appropriate tolerance. No differences were documented in anthropometric and arm strength variables.


The use of oral nutritional supplements during the hospital stay increases considerably the energy and protein consumption in patients with a >50% adherence with appropriate tolerance.

Keywords : Malnutrition; Hospital Inpatients; Oral Nutrition Supplement; Nutritional Adequacy; Nutrition support.

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