Evidence mapPaperPMID 41999054Full record

SynthesisLiver international : official journal of the International Association for the Study of the Liver2026

Effects of GLP-1 Receptor Agonists on Muscle Mass, Strength, and Quality in MASLD: A Systematic Review.

Fernando Iorra, Tanya Jayakar, Michael Yee, Mark R Thursz, Beatriz D Schaan, Pinelopi Manousou

Abstract readSystematic Review
In one paragraph

Synthesis in Liver international : official journal of the International Association for the Study of the Liver, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Effects of GLP-1 Receptor Agonists on Muscle Mass, Strength, and Quality in MASLD: A Systematic Review.Liver international : official journal of the International Association for the Study of the Liver · 2026
    Pooled it
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Fernando IorraPostgraduate Program in Medical Sciences: Endocrinology, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.ORCID 0000-0002-6503-9323
Tanya JayakarFaculty of Medicine, Imperial College London, London, UK.
Michael YeeSection of Endocrinology and Metabolic Medicine, St Mary's Hospital, Imperial College NHS Trust, London, UK.
Mark R ThurszFaculty of Medicine, Imperial College London, London, UK.
Beatriz D SchaanPostgraduate Program in Medical Sciences: Endocrinology, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
Pinelopi ManousouFaculty of Medicine, Imperial College London, London, UK.ORCID 0000-0002-5363-1565

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsGLP-1 receptor agonists (GLP-1RAs) promote significant weight loss, but their impact on muscle mass, strength, and quality in metabolic dysfunction-associated steatotic liver disease (MASLD), a condition prone to muscle impairment, remains uncertain.

methodsWe conducted a systematic review of MEDLINE/PubMed, Embase, and the Cochrane Library up to 2 December 2025. Interventional and observational studies assessing GLP-1RA therapy and muscle-related outcomes in adults with MASLD were included. Muscle mass was assessed by computed tomography or magnetic resonance imaging, dual-energy X-ray absorptiometry, or bioelectrical impedance analysis; lean mass and fat-free mass were considered proxies. Muscle strength was evaluated using handgrip strength (HGS) or sit-to-stand (STS) tests. Muscle quality was assessed by imaging-based quantification of intramuscular fat infiltration (myosteatosis) or functionally based on performance relative to muscle mass. Results were synthesised narratively.

resultsTwelve studies were included (n = 810). Eleven assessed muscle mass (n = 785) across different GLP-1RA regimens and treatment durations (12-52 weeks). Findings suggested relative preservation of muscle mass, with modest reductions generally proportional to overall weight loss. Muscle strength was evaluated in three studies (n = 477), with no evidence of deterioration in HGS or STS performance despite meaningful weight loss. Muscle quality was assessed in four studies (n = 139) using imaging or functional metrics, with results suggesting preserved or improved muscle quality. Evidence was limited by small sample sizes and heterogeneous assessment methods.

conclusionCurrent evidence suggests that GLP-1RA therapy is not associated with clinically meaningful loss of muscle mass or strength in adults with MASLD, with early data indicating possible improvements in muscle quality.

Indexed as

Fatty LiverGlucagon-Like Peptide-1 Receptor AgonistsMuscle, SkeletalMuscle StrengthNon-alcoholic Fatty Liver DiseaseHand StrengthHumansGlucagon-Like Peptide-1 Receptor Agonistsglucagon‐like Peptide‐1 receptor agonistsmusclesmuscle strengthnon‐alcoholic fatty liver disease

Identifiers

PMID41999054
PMCPMC13090617

What Socratic holds

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LicenceCC BY
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Registered trials

None linked

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 Socratic graph.