SynthesisInternational journal of environmental research and public health2022
Protein Intake and Sarcopenia in Older Adults: A Systematic Review and Meta-Analysis.
Synthesis in International journal of environmental research and public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 8 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
90 citing papers in PubMed, 8 syntheses or guidelines pooled it, 121 citations in OpenAlex.
- Evidence-based position paper on Physical and Rehabilitation Medicine (PRM) professional practice for persons with sarcopenia. The European PRM position (UEMS PRM Section).European journal of physical and rehabilitation medicine · 2026Pooled it
- Pooled it
- Effects of protein-based multinutrient therapy on sarcopenia in older adults: a systematic review and meta-analysis.Aging clinical and experimental research · 2025Pooled it
- Ultra-Processed Food Intakes and Health Outcomes in Adults Older Than 60 Years: A Systematic Review.Nutrition reviews · 2025Pooled it
- Evidence-Based Pathways to Healthy Aging: A Systematic Review and Meta-analysis of Lifestyle Interventions for Longevity and Well-Being.Investigacion y educacion en enfermeria · 2025Pooled it
- Effect of Plant Versus Animal Protein on Muscle Mass, Strength, Physical Performance, and Sarcopenia: A Systematic Review and Meta-analysis of Randomized Controlled Trials.Nutrition reviews · 2025Pooled it
- Association of Protein Intake with Sarcopenia and Related Indicators Among Korean Older Adults: A Systematic Review and Meta-Analysis.Nutrients · 2024Pooled it
- Improving sarcopenia in older adults: a systematic review and meta-analysis of randomized controlled trials of whey protein supplementation with or without resistance training.The journal of nutrition, health & aging · 2024Pooled it
- Trial
- Effects of Peanut Butter Supplementation on Older Adults' Physical Function: A 6-Month Randomised Controlled Trial.Journal of cachexia, sarcopenia and muscle · 2026Trial
- Association of personalized dietary advice aiming to increase protein intake with macronutrient intake of community-dwelling older adults: a secondary analysis of the PROMISS RCT.European geriatric medicine · 2025Trial
- Oral Protein Supplements Might Improve Nutritional Status and Quality of Life in Elderly Patients after Standard Pancreatic Resection.Nutrients · 2024Trial
- Effects of oral oligopeptide preparation and exercise intervention in older people with sarcopenia: a randomized controlled trial.BMC geriatrics · 2024Trial
- A 3 month nutrition and exercise program improved hallux strength among senior daycare center users in Korea: a cluster randomized controlled trial.Frontiers in public health · 2024Trial
- Prevalence of Sarcopenia and Factors Associated with Body Composition and Protein Intake in Institutionalized Older Adults from Three Long-Term Care Facilities in Loja, Ecuador: A Cross-Sectional Study.Geriatrics (Basel, Switzerland) · 2026Article
- The hallmarks of protein and amino acid restriction in aging and longevity.Cell press blue · 2026Article
- Frailty in patients undergoing video-assisted thoracoscopic surgery for lung cancer: a narrative review of assessment, outcomes and prehabilitation.World journal of surgical oncology · 2026Review
- Network Analysis of Food Intake Patterns and Frailty Dimensions in Chinese Older Adults: A National Cross-Sectional Study.Nutrients · 2026Article
- Article
- Protein Consumption and Cognitive Health in Aging: Associations with Sarcopenia and Dietary Options, a Narrative Review.Nutrients · 2026Review
30 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe present systematic review and meta-analysis investigated the cross-sectional and longitudinal associations between protein intake and sarcopenia in older adults.
methodsObservational 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.
resultsFive 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.
conclusionsResults of the present study suggest that an inadequate protein intake might be associated with sarcopenia in older adults.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.