Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 407275
Title Dietary protein intake in community-dwelling, frail, and institutionalized elderly people: scope for improvement
Author(s) Tieland, C.A.B.; Borgonjen-van den Berg, K.J.; Loon, L.C. van; Groot, C.P.G.M. de
Source European Journal of Nutrition 51 (2012)2. - ISSN 1436-6207 - p. 173 - 179.
Department(s) Chair Nutrition and Health over the Lifecourse
Chair Nutrition and Disease
Human Nutrition (HNE)
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) randomized controlled-trial - physical-activity scale - doubly labeled water - alzheimers-disease - body-composition - skeletal-muscle - older-people - amino-acids - lean mass - exercise
Abstract Adequate dietary protein intake is required to postpone and treat sarcopenia in elderly people. Insight into dietary protein intake in this heterogeneous population segment is needed to locate dietary inadequacies and to identify target populations and feeding strategies for dietary interventions. Therefore, we assessed dietary protein intake, distribution of protein intake throughout the day, and the use of protein-containing food sources in community- dwelling, frail, and institutionalized elderly people in the Netherlands. Methods Secondary analyses were carried out using dietary data collected from studies among community-dwelling, frail, and institutionalized elderly people to evaluate protein intake characteristics. Results Dietary protein intake averaged 1.1 ± 0.3 g/kgbw/ day in community-dwelling, 1.0 ± 0.3 g/kg-bw/day in frail, and 0.8 ± 0.3 g/kg-bw/day in institutionalized elderly men. Similar protein intakes were found in women. Ten percent of the community-dwelling and frail elderly and 35% of the institutionalized elderly people showed a protein intake below the estimated average requirement (0.7 g/kg-bw/day). Protein intake was particularly low at breakfast in community-dwelling (10 ± 10 g), frail (8 ± 5 g), and institutionalized elderly people (12 ± 6 g) with bread and dairy products as predominant protein sources. Conclusions Whereas daily protein intake is generally well above the recommended dietary allowance in community- dwelling and frail elderly people, a significant proportion of institutionalized elderly showed an intake below the current protein requirement, making them an important target population for dietary interventions. Particularly at breakfast, there is scope for improving protein intake.
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