Dietary intake of plant- and animal-derived protein and incident cardiovascular diseases: the pan-European EPIC-CVD case-cohort study

Ju-Sheng Zheng, Marinka Steur, Fumiaki Imamura, Heinz Freisling, Laura Johnson, Yvonne T van der Schouw, Tammy Y N Tong, Elisabete Weiderpass, Rashmita Bajracharya, Marta Crous-Bou, Christina C Dahm, Alicia K Heath, Daniel B Ibsen, Franziska Jannasch, Verena Katzke, Giovanna Masala, Conchi Moreno-Iribas, Carlotta Sacerdote, Matthias B Schulze, Sabina SieriNicholas J Wareham, John Danesh, Adam S Butterworth, Nita G Forouhi*

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

1 Citation (Scopus)

Abstract

BACKGROUND: Epidemiological evidence suggests that a potential association between dietary protein intake and cardiovascular disease (CVD) may depend on the protein source, i.e. plant- or animal- derived, but past research was limited and inconclusive.

OBJECTIVE: To evaluate the association of dietary plant- or animal-derived protein consumption with risk of CVD, and its components coronary heart disease (CHD) and stroke.

METHODS: This analysis in the European Prospective Investigation into Cancer and Nutrition (EPIC)-CVD case-cohort study included 16244 incident CVD cases (10784 CHD and 6423 stroke cases) and 15141 subcohort members from seven European countries. We investigated the association of estimated dietary protein intake with CVD, CHD and stroke (total, fatal and non-fatal) using multivariable-adjusted Prentice-weighted Cox regression. We estimated isocaloric substitutions of replacing fats and carbohydrates with plant- or animal-derived protein and replacing food-specific animal protein with plant protein. Multiplicative interactions between dietary protein and pre-specified variables were tested.

RESULTS: Neither plant- nor animal-derived protein intake was associated with incident CVD, CHD or stroke in adjusted analyses without or with macronutrient-specified substitution analyses. Higher plant-derived protein intake was associated with 22% lower total stroke incidence among never smokers (HR 0.78, 95%CI: 0.62, 0.99), but not among current smokers (HR 1.08, 95%CI: 0.83, 1.40, p-interaction=0.004). Moreover, higher plant-derived protein (per 3% total energy) when replacing red meat protein (HR 0.52, 95%CI: 0.31, 0.88), processed meat protein (HR 0.39, 95%CI:0.17, 0.90) and dairy protein (HR 0.54, 95%CI:0.30, 0.98) was associated with lower incidence of fatal stroke.

CONCLUSION: Plant- or animal-derived protein intake was not associated with overall CVD. However, the association of plant-derived protein consumption with lower total stroke incidence among non-smokers, and with lower incidence of fatal stroke highlights the importance of investigating CVD sub-types and potential interactions. These observations warrant further investigation in diverse populations with varying macronutrient intakes and dietary patterns.

Original languageEnglish
JournalThe American Journal of Clinical Nutrition
Volume119
Issue5
Pages (from-to)1164-1174
Number of pages11
ISSN0002-9165
DOIs
Publication statusPublished - May 2024

Keywords

  • plant-derived protein
  • animal-derived protein
  • cardiovascular disease
  • stroke
  • coronary heart disease
  • ischemic heart disease
  • Prospective Studies
  • Cardiovascular Diseases/epidemiology
  • Humans
  • Middle Aged
  • Risk Factors
  • Male
  • Plant Proteins, Dietary/administration & dosage
  • Case-Control Studies
  • Incidence
  • Diet
  • Europe/epidemiology
  • Adult
  • Female
  • Stroke/epidemiology
  • Aged
  • Animal Proteins, Dietary/administration & dosage
  • Dietary Proteins/administration & dosage
  • Cohort Studies

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