Systematic review2022Open access

Health effects associated with consumption of unprocessed red meat: a Burden of Proof study

Lescinsky H, Afshin A, Ashbaugh C, Bisignano C, Brauer M, Ferrara G, Hay SI, He J, Iannucci V, Marczak LB, McLaughlin SA, Mullany EC, Parent MC, Serfes AL, Sorensen RJD, Aravkin AY, Zheng P, Murray CJL

Nature medicine · 110 citations

How it was studied

Design
Systematic review (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death
Intake measured by
Not stated

Who paid for it

Funding
Independent funding
Nonprofit
Bill and Melinda Gates Foundation
Nonprofit
Bloomberg Philanthropies
Nonprofit
Cardiovascular Medical Research and Education Fund
University or hospital
University of Melbourne
Government
Public Health England
Government
National Institutes of Health
Government
Medical Research Council
Government
National Health and Medical Research Council
Government
Norwegian Institute of Public Health
Government
National Institute on Aging
Government
National Institute of Mental Health
Government
NIMH NIH HHS
Government
NIA NIH HHS
Grants
National Institute of Mental Health (R01MH110163); National Institute on Aging (#P30AG047845); National Institutes of Health (P30AG047845)

Based on 13 listed funder(s) and full-text disclosure statement.

Publication

Published
2022-10-01 · Nat Med · vol. 28 · issue 10 · pp. 2075–2082
Publisher
Nature Portfolio
Cited
173 citations · more than 100% of similar papers · 29.2× the field average
Impact
Top 10% most cited in its field
References
116 works
Access
Open access (hybrid journal) · CC-BY
Research areas
Nutritional Studies and Diet · Agriculture Sustainability and Environmental Impact · Meat and Animal Product Quality
Keywords
Red meat, Medicine, Environmental health, Diabetes mellitus, Consumption (sociology), Stroke (engine), Disease, Cardiovascular health, Health benefits, Internal medicine, Traditional medicine, Pathology, Endocrinology
MeSH
humans, diabetes mellitus, type 2, chronic disease, diet, risk factors, meat, red meat

18 authors

From US, CA

  • Haley LescinskyUniversity of Washington; Institute for Health Metrics and Evaluation
  • Ashkan AfshinUniversity of Washington; Institute for Health Metrics and Evaluation
  • Charlie AshbaughUniversity of Washington; Institute for Health Metrics and Evaluation
  • Catherine BisignanoUniversity of Washington; Institute for Health Metrics and Evaluation
  • Michael D BrauerUniversity of British Columbia; University of Washington; Institute for Health Metrics and Evaluation
  • Giannina FerraraUniversity of Washington; Institute for Health Metrics and Evaluation

Abstract

Characterizing the potential health effects of exposure to risk factors such as red meat consumption is essential to inform health policy and practice. Previous meta-analyses evaluating the effects of red meat intake have generated mixed findings and do not formally assess evidence strength. Here, we conducted a systematic review and implemented a meta-regression-relaxing conventional log-linearity assumptions and incorporating between-study heterogeneity-to evaluate the relationships between unprocessed red meat consumption and six potential health outcomes. We found weak evidence of association between unprocessed red meat consumption and colorectal cancer, breast cancer, type 2 diabetes and ischemic heart disease. Moreover, we found no evidence of an association between unprocessed red meat and ischemic stroke or hemorrhagic stroke. We also found that while risk for the six outcomes in our analysis combined was minimized at 0 g unprocessed red meat intake per day, the 95% uncertainty interval that incorporated between-study heterogeneity was very wide: from 0-200 g d-1. While there is some evidence that eating unprocessed red meat is associated with increased risk of disease incidence and mortality, it is weak and insufficient to make stronger or more conclusive recommendations. More rigorous, well-powered research is needed to better understand and quantify the relationship between consumption of unprocessed red meat and chronic disease.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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