Evidence map›Paper›PMID 40210826›Full record

SynthesisGeroScience2025

Association between red and processed meat consumption and colorectal cancer risk: a comprehensive meta-analysis of prospective studies.

Zoltan Ungvari, Mónika Fekete, Péter Varga, Andrea Lehoczki, Gyöngyi Munkácsy, János Tibor Fekete, Giampaolo Bianchini, Alberto Ocana, Annamaria Buda, Anna Ungvari and 1 more

Abstract readMeta-Analysis
In one paragraph

Synthesis in GeroScience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 2 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

37 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

11 authors.

Zoltan Ungvari *Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
Mónika Fekete *Institute of Preventive Medicine and Public Health, Semmelweis University, Budapest, Hungary.
Péter Varga *Institute of Preventive Medicine and Public Health, Semmelweis University, Budapest, Hungary.
Andrea Lehoczki *Institute of Preventive Medicine and Public Health, Semmelweis University, Budapest, Hungary.
Gyöngyi MunkácsyDepartment of Bioinformatics, Semmelweis University, 1094, Budapest, Hungary.
János Tibor FeketeDepartment of Bioinformatics, Semmelweis University, 1094, Budapest, Hungary.
Giampaolo BianchiniDepartment of Medical Oncology, IRCCS Ospedale San Raffaele, Milan, Italy.
Alberto OcanaExperimental Therapeutics in Cancer Unit, Instituto de Investigación Sanitaria San Carlos (IdISSC), and CIBERONC, Madrid, Spain.
Annamaria BudaInstitute of Preventive Medicine and Public Health, Semmelweis University, Budapest, Hungary.
Anna UngvariInstitute of Preventive Medicine and Public Health, Semmelweis University, Budapest, Hungary. Ungann2004@gmail.com.ORCID 0009-0001-5053-2828
Balázs GyőrffyJozsef Fodor Center for Prevention and Healthy Aging, Semmelweis University, Budapest, Hungary.

Funding

Cerebral microhemorrhages and gait dysfunction in agingR01AG055395 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CSISZAR, ANNA · 2017 to 2025
$2.3M
Age-related vascular cognitive impairment: role of endothelial senescenceR01AG068295 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CSISZAR, ANNA, UNGVARI, ZOLTAN ISTVAN · 2020 to 2024
$1.8M
The role of IGF-1 signaling in vascular smooth muscle cells in age-related vascular cognitive impairment and dementiaR01AG070915 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CONLEY, SHANNON M · 2021 to 2025
$1.8M
Radiation-induced astrocyte dysfunction and cognitive declineR01NS100782 · NINDS · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI UNGVARI, ZOLTAN ISTVAN · 2018 to 2022
$1.7M
Chemotherapy-induced vascular cognitive impairment: role of endothelial senescenceR01CA255840 · NCI · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CSISZAR, ANNA · 2021 to 2025
$1.6M
Cerebromicrovascular rejuvenation by heterochronic blood exchangeRF1AG072295 · NIA · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI CSISZAR, ANNA, UNGVARI, ZOLTAN ISTVAN · 2021 to 2021
$1.4M
NCI NIH HHS R01 CA255840NIA NIH HHS R01 AG055395NIA NIH HHS R01 AG068295NIA NIH HHS R01 AG070915NIA NIH HHS RF1 AG072295NINDS NIH HHS R01 NS100782
6 · The paper itself

Abstract

Increasing evidence suggests that red and processed meat consumption may elevate the risk of colorectal cancer (CRC), yet the magnitude and consistency of this association remain debated. This meta-analysis aims to quantify the relationship between red and processed meat intake and the risk of CRC, colon cancer, and rectal cancer using the most comprehensive set of prospective studies to date. We conducted a comprehensive search in PubMed, Web of Science, Cochrane Library, Embase, and Google Scholar databases from 1990 to November 2024, to identify relevant prospective studies examining red, processed, and total meat consumption in relation to colorectal, colon, and rectal cancer risk. Hazard ratios (HR) and 95% confidence intervals (CI) were extracted for each study and pooled using a random-effects model to account for variability among studies. Statistical evaluation was executed using the online platform MetaAnalysisOnline.com. A total of 60 prospective studies were included. Red meat consumption was associated with a significantly increased risk of colon cancer (HR = 1.22, 95% CI 1.15-1.30), colorectal cancer (HR = 1.15, 95% CI 1.10-1.21), and rectal cancer (HR = 1.22, 95% CI 1.07-1.39). Processed meat consumption showed similar associations with increased risk for colon cancer (HR = 1.13, 95% CI 1.07-1.20), colorectal cancer (HR = 1.21, 95% CI 1.14-1.28), and rectal cancer (HR = 1.17, 95% CI 1.05-1.30). Total meat consumption also correlated with an elevated risk of colon cancer (HR = 1.22, 95% CI 1.11-1.35), colorectal cancer (HR = 1.17, 95% CI 1.12-1.22), and rectal cancer (HR = 1.28, 95% CI 1.10-1.48). This meta-analysis provides robust evidence that high consumption of red and processed meats is significantly associated with an increased risk of colorectal, colon, and rectal cancers. These findings reinforce current dietary recommendations advocating for the limitation of red and processed meat intake as part of cancer prevention strategies.

Indexed as

Colorectal NeoplasmsMeat ProductsRed MeatHumansProspective StudiesRisk AssessmentRisk FactorsAgingColon cancerColorectal cancerDietDietaryDietary recommendationHealthy agingMeta-analysisProcessed meatRectal cancerRed meatRisk factorSemmelweis Study

Identifiers

PMID40210826
PMCPMC12181564

What Socratic holds

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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.