• Jos Borkent, Marleen Manders, Annemarie Nijhof, Lianda Wijker, Edith Feskens, Elke Naumann, and Marian de van der Schueren.
• HAN University of Applied Sciences, Nijmegen, The Netherlands; Wageningen University, Wageningen, The Netherlands. Electronic address: jos.borkent@wur.nl.
• Nutrition. 2023 Jun 1; 110: 112005112005.

ObjectivesAn optimal diet contributes to reducing malnutrition prevalence in the nursing home population. For this population, recommended daily intakes are ≥1.0 g protein/kg body weight and ≥27 energy kcal/kg body weight. The aim of this study was to identify the protein and energy intake of nursing home residents and to assess groups at increased risk for low intake.MethodsCross-sectional data regarding food intake was collected by three-day observations in 189 residents (aged ≥65 y, mean age 85.0 y) of five different nursing homes. Linear mixed models were used to examine associations of protein and energy intake as dependent variables with demographic and disease-related problems as determinants. Results were adjusted for age, sex, and mobility levels and stratified by a protein/energy-enriched diet (P/E+).ResultsThe daily protein intake of the residents was 0.80 (SD 0.22) g/kg body weight, with 84.7% having an intake below the recommended daily 1 g/kg body weight. Mean daily energy intake was 20.7 (SD 6.1) kcal/kg body weight, with 85.2% having an intake below recommendation. Protein/energy intake was higher in the P/E+ group compared with standard diet: 0.92 (SD 0.23) versus 0.74 (SD 0.19) g/kg body weight, and 23.9 (SD 6.1) versus 19.1 (SD 5.4) kcal/kg body weight, respectively. The oldest age groups (>85 y), chair-bound residents, women, and residents having difficulties with chewing, dysphagia, a reported decreased food intake, or a decreased appetite were at a higher risk for a low protein/energy intake.ConclusionNearly all nursing home residents were at increased risk for not meeting the minimum protein/energy requirements. Intakes should, on average, be increased with ≥15 g protein and ≥520 kcal to reach the minimum intake targets. Although using a P/E+ diet was associated with higher intakes, even these residents had intakes below the requirements.Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.

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