Cardiometabolic & kidneyResearch article

The relationship between processed meat, red meat, and risk of cardiovascular disease and Type 2 diabetes: a Mendelian randomization study

Eur J Prev CardiolPublished

  • Mendelian randomisation study
  • two-sample

Inverse-variance weighted, weighted median and MR-Egger methods

Authors' conclusion

The study discerned no observable impact of red and processed meat consumption on CAD, hypertension, stroke, and T2DM.

Study context

Comparison
Genetically predicted processed and red meat intake vs risk of CVD and T2DM
Outcome
CAD, hypertension, stroke and T2DM

Main finding

As reported in the abstract

CAD, hypertension, stroke, T2DM (inverse-variance weighted)

No causal association between processed and red meat intake and coronary artery disease (CAD), hypertension, stroke or T2DM

P > 0.05

Further findings

Heterogeneity (Cochrane's Q)

Processed meat: heterogeneity in hypertension and stroke
P < 0.05
Pork: heterogeneity in hypertension, stroke and T2DM
P < 0.05
Lamb: heterogeneity in hypertension and T2DM
P < 0.05
Other exposures and outcomes: no heterogeneity
P > 0.05

Pleiotropy (MR-Egger)

No significant pleiotropy for all exposures
P > 0.05

Leave-one-out sensitivity analysis

Results robust

Original publication

The relationship between processed meat, red meat, and risk of cardiovascular disease and Type 2 diabetes: a Mendelian randomization study. Eur J Prev Cardiol. Published 25 March 2024. doi:10.1093/eurjpc/zwae117

Summarised from the published abstract; every number is checked against it