Fighting sarcopenia in ageing European adults: The importance of the amount and source of dietary proteins

Montiel-Rojas, Diego, Nilsson, Andreas, Santoro, Aurelia, Bazzocchi, Alberto, De Groot, Lisette C. P. G. M., Feskens, Edith J. M., Berendsen, Agnes A. M., Madej, Dawid, Kaluza, Joanna, Pietruszka, Barbara, Jennings, Amy, Fairweather-Tait, Susan ORCID:, Battista, Giuseppe, Capri, Miriam, Franceschi, Claudio and Kadi, Fawzi (2020) Fighting sarcopenia in ageing European adults: The importance of the amount and source of dietary proteins. Nutrients, 12 (12). ISSN 2072-6643

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While an adequate protein intake is important for the maintenance of muscle mass during ageing, the amount and source of protein necessary for optimal prevention of sarcopenia remains to be determined. The present study aimed to investigate the influence of the amount and source of dietary proteins on sarcopenia risk in a cohort of 65–79-year-old European adults within the frame of the NU-AGE study. A total of 986 participants were included in the analysis. Skeletal muscle index (SMI), assessed by dual-energy X-ray absorptiometry (DXA), and handgrip strength (HG) were employed to create a continuous sex-specific sarcopenia risk score (SRS). Total amount together with animal-and plant-derived sources of proteins were obtained from a 7-day food record. Differences in SRS were analysed across groups of total protein intake (<0.8 g/body weight (BW); 0.8–<1.0 g/BW; 1.0–<1.2 g/BW; and ≥1.2 g/BW). The association between SRS and the different sources of protein was assessed using isocaloric substitution models adjusted by demographic, medical, and lifestyle factors. A significant linear dose-response relationship was observed, with a lower SRS linked to higher protein intakes. Based on the isocaloric substitution modelling, a reduced SRS was observed when increasing plant protein to the detriment of animal protein, while holding total protein intake constant. Further, this result remained significant after stratifying the analysis by adherence to different levels of protein intake. Our findings suggest that older adults may benefit from increasing protein intakes above current recommendations. Besides total amount, protein source should be considered when promoting health dietary habits in older adults for the prevention of sarcopenia.

Item Type: Article
Uncontrolled Keywords: animal protein,elderly,isocaloric substitution,macronutrients,metabolic syndrome,muscle mass,muscle strength,physical activity,plant protein,food science,nutrition and dietetics ,/dk/atira/pure/subjectarea/asjc/1100/1106
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
UEA Research Groups: Faculty of Medicine and Health Sciences > Research Groups > Nutrition and Preventive Medicine
Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health
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Depositing User: LivePure Connector
Date Deposited: 05 Dec 2020 00:46
Last Modified: 19 Oct 2023 02:51
DOI: 10.3390/nu12123601


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