Protein and leucine intake of malnourished older patients during hospitalization

A S Doorduijn, S Verlaan, N M Rijssen, M A Van Der Schueren, Doorduijn A.S., Verlaan S., Van Rijssen N.M., De Van Der Schueren M.A., A S Doorduijn, S Verlaan, N M Rijssen, M A Van Der Schueren

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Abstract

Rationale: The recommended protein intake for geriatric hospitalized patients is 1.2-1.5 g/kg/day and at least 25- 30 g/meal. Furthermore, recent guidelines state that a minimum of 2.5-2.8 g leucine per meal is required for optimal muscle protein synthesis. The objective of this study was to examine the current daily protein intake, and protein and leucine intake per meal of malnourished, older patients during hospitalization. Methods: Nutritional intake of 25 older, malnourished patients (mean age 80.7 ± 10.9 years, 32% male) was measured on 3 consecutive hospital days by measuring food intake and weighing food leftovers. Leucine intake was estimated based on 8% leucine in vegetable-protein and 10% in animal-protein. Results: Mean protein intake was 0.9 ± 0.2 g/kg/day; 88% of patients did not meet the minimum protein recommendation of 1.2 g/kg/day. In 56% (n = 14) of patients, the leucine-goal of 2.5 g/meal was met once a day, in 4% (n = 1) this was twice a day. None of the patients achieved the recommendation of 2.5 g leucine three times a day. Conclusion: Both protein and leucine intake of malnourished elderly during hospitalization are far below recommendations. To achieve an adequate intake, in order to stimulate muscle protein synthesis and preserve muscle mass, extra attention should be given to protein intake, especially during breakfast and lunch. (Table Presented).
Original languageEnglish
Pages (from-to)S56
JournalClinical Nutrition
Volume35
Publication statusPublished - 2016

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Doorduijn, A. S., Verlaan, S., Rijssen, N. M., Van Der Schueren, M. A., A.S., D., S., V., ... Van Der Schueren, M. A. (2016). Protein and leucine intake of malnourished older patients during hospitalization. Clinical Nutrition, 35, S56.