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Lookup NU author(s): Dr Nuno MendoncaORCiD, Dr Antoneta Granic, Professor John Mathers, Professor Thomas Hill, Dr Mario Siervo, Professor Ashley AdamsonORCiD, Emerita Professor Carol Jagger
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2017 The Author(s) Purpose: The very old (aged ≥ 85 years), fastest growing age group in most western societies, are at especially high risk of muscle mass and strength loss. The amount, sources and timing of protein intake may play important roles in the aetiology and management of sarcopenia. This study investigated the prevalence and determinants of low protein intake in 722 very old adults participating in the Newcastle 85+ Study. Methods: Protein intake was estimated with 2 × 24-h multiple pass recalls (24 h-MPR) and contribution (%) of food groups to protein intake was calculated. Low protein intake was defined as intake < 0.8 g of protein per adjusted body weight per day. A backward stepwise multivariate linear regression model was used to explore socioeconomic, health and lifestyle predictors of protein intake. Results: Twenty-eight percent (n = 199) of the community-living very old in the Newcastle 85+ Study had low protein intake. Low protein intake was less likely when participants had a higher percent contribution of meat and meat products to total protein intake (OR 0.97, 95% CI 0.95, 1.00) but more likely with a higher percent contribution of cereal and cereal products and non-alcoholic beverages. Morning eating occasions contributed more to total protein intake in the low than in the adequate protein intake group (p < 0.001). Being a woman (p < 0.001), having higher energy intake (p < 0.001) and higher tooth count (p = 0.047) was associated with higher protein intake in adjusted models. Conclusion: This study provides novel evidence on the prevalence of low protein intake, diurnal protein intake patterns and food group contributors to protein intake in the very old.
Author(s): Mendonca N, Granic A, Mathers JC, Hill TR, Siervo M, Adamson AJ, Jagger C
Publication type: Article
Publication status: Published
Journal: European Journal of Nutrition
Year: 2017
Volume: 57
Issue: 8
Pages: 2713-2722
Online publication date: 25/09/2017
Acceptance date: 17/09/2017
Date deposited: 03/10/2017
ISSN (print): 1436-6207
ISSN (electronic): 1436-6215
Publisher: Springer Medezin
URL: https://doi.org/10.1007/s00394-017-1537-5
DOI: 10.1007/s00394-017-1537-5
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