Protein Intake and Sarcopenia in Older Adults: A Systematic Review and Meta-Analysis

Hélio José Coelho-Junior, Riccardo Calvani, Domenico Azzolino, Anna Picca, Matteo Tosato, Francesco Landi, Matteo Cesari and Emanuele Marzetti
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Hélio José Coelho-Junior: Department of Geriatrics and Orthopedics, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy
Riccardo Calvani: Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, L.go A. Gemelli 8, 00168 Rome, Italy
Domenico Azzolino: Department of Clinical and Community Sciences, Università di Milano, Via Festa del Perdono 7, 20122 Milan, Italy
Anna Picca: Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, L.go A. Gemelli 8, 00168 Rome, Italy
Matteo Tosato: Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, L.go A. Gemelli 8, 00168 Rome, Italy
Francesco Landi: Department of Geriatrics and Orthopedics, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy
Matteo Cesari: Department of Clinical and Community Sciences, Università di Milano, Via Festa del Perdono 7, 20122 Milan, Italy
Emanuele Marzetti: Department of Geriatrics and Orthopedics, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168 Rome, Italy

IJERPH, 2022, vol. 19, issue 14, 1-10

Abstract: Background: The present systematic review and meta-analysis investigated the cross-sectional and longitudinal associations between protein intake and sarcopenia in older adults. Methods: Observational studies that investigated the association between protein intake and sarcopenia as the primary or secondary outcome in people aged 60 years and older were included. Studies published in languages other than English, Italian, Portuguese, and Spanish were excluded. Studies were retrieved from MEDLINE, SCOPUS, EMBASE, CINAHL, AgeLine, and Food Science Source databases through January 31, 2022. A pooled effect size was calculated based on standard mean differences. Results: Five cross-sectional studies, one longitudinal study, and one case-control study that investigated 3353 community-dwelling older adults with a mean age of approximately 73 years were included. The meta-analysis of four studies indicated that older adults with sarcopenia consumed significantly less protein than their peers with no sarcopenia. Conclusions: Results of the present study suggest that an inadequate protein intake might be associated with sarcopenia in older adults.

Keywords: nutrition; anorexia; physical function; walking speed; muscle strength; dynapenia; frailty; elderly (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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