Evidence map›Paper›PMID 41466321›Full record

ReviewDiabetology & metabolic syndrome2025

The association between dietary protein intake and metabolic syndrome: a GRADE-assessed systematic review and meta-analysis of observational studies.

Dorsa Ghazvineh, Ali Hosseinpour, Vahid Basirat, Elnaz Daneshzad

Abstract readReview
In one paragraph

Review in Diabetology & metabolic syndrome, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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. Article
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

4 authors.

Dorsa GhazvinehDepartment of Exercise Physiology, K.C.*, Islamic Azad University of Karaj, Karaj, Iran.
Ali HosseinpourNon-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.
Vahid BasiratDepartment of Gastroenterology, School of Medicine, Isfahan University of Medical Sciences and Health Services, Isfahan, Iran.
Elnaz DaneshzadNon-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran. daneshzad@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe primary aim of this meta-analysis is to assess the association of dietary protein with the risk of metabolic syndrome (MetS) in observational studies. In addition, the secondary aim is to evaluate the effectiveness of protein intake on MetS components.

methodsAn Initial search was conducted from PubMed, Web of Science (WOS), and Scopus until May 2024. Cohort, cross-sectional, and case-control studies were included, and their quality and certainty were evaluated by the Newcastle - Ottawa Quality Assessment Scale (NOS) and the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) tools, respectively.

resultBased on our meta-analysis, we found that plant protein (PP), and animal protein (AP) had an inverse association with MetS (OR: 0.77, 95% CI: 0.69, 0.87, P < 0.001; I

conclusionCurrent evidence suggests that PP and AP intake may be associated with reduced risk of MetS as the primary outcome. However, in specific contexts, such as some of the secondary outcomes, results showed no reaction, e.g., TP-WC, TP-FBS, TP-BP, AP-FBS, PP-FBS. Besides, due to the high heterogeneity, methodological quality, and significant bias in PP-MetS and PP-TG, recommendations must be made cautiously. Finally, no definitive conclusions can be drawn regarding a causal or uniform protective relationship.

trial registrationProspero ID 1020957.

Indexed as

Animal proteinsMeta-analysisMetabolic syndromePlant proteinsSystematic review

Identifiers

PMID41466321
PMCPMC12866194

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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.