Sophia Antipolis, April 15, 2021: An observational study in nearly 20,000 individuals has found that greater intake of red and processed meat is associated with worse heart function. The research is presented at ESC Preventive Cardiology 2021, an online scientific congress of the European Society of Cardiology (ESC).1
“Previous studies have shown links between greater red meat consumption and increased risk of heart attacks or dying from heart disease,” said study author Dr. Zahra Raisi-Estabragh of Queen Mary University of London, UK.2,3 “For the first time, we examined the relationships between meat consumption and imaging measures of heart health. This may help us to understand the mechanisms underlying the previously observed connections with cardiovascular disease.”
The study included 19,408 participants of the UK Biobank.4 The researchers examined associations of self-reported intake of red and processed meat with heart anatomy and function.
Three types of heart measures were analysed. First, cardiovascular magnetic resonance (CMR) assessments of heart function used in clinical practice such as volume of the ventricles and measures of the pumping function of the ventricles. Second, novel CMR radiomics used in research to extract detailed information from heart images such as shape and texture (which indicates health of the heart muscle). Third, elasticity of the blood vessels (stretchy arteries are healthier).
The analysis was adjusted for other factors that might influence the relationship including age, sex, deprivation, education, smoking, alcohol, exercise, high blood pressure, high cholesterol, diabetes, and body mass index (BMI) as a measure of obesity.
The researchers found that greater intake of red and processed meat was associated with worse imaging measures of heart health, across all measures studied. Specifically, individuals with higher meat intake had smaller ventricles, poorer heart function, and stiffer arteries – all markers of worse cardiovascular health.
As a comparison, the researchers also tested the relationships between heart imaging measures and intake of oily fish, which has previously been linked with better heart health. They found that as the amount of oily fish consumption rose, heart function improved, and arteries were stretchier.
Dr. Raisi-Estabragh said: “The findings support prior observations linking red and processed meat consumption with heart disease and provide unique insights into links with heart and vascular structure and function.”
The associations between imaging measures of heart health and meat intake were only partially explained by high blood pressure, high cholesterol, diabetes, and obesity.
“It has been suggested that these factors could be the reason for the observed relationship between meat and heart disease,” said Dr. Raisi-Estabragh. “For example, it is possible that greater red meat intake leads to raised blood cholesterol and this in turn causes heart disease. Our study suggests that these four factors do play a role in the links between meat intake and heart health, but they are not the full story.”
She noted that the study did not look into alternative mechanisms. But she said: “There is some evidence that red meat alters the gut microbiome, leading to higher levels of certain metabolites in the blood, which have in turn been linked to greater risk of heart disease.”
Dr. Raisi-Estabragh said: “This was an observational study and causation cannot be assumed. But in general, it seems sensible to limit intake of red and processed meat for heart health reasons.”
Funding: Zahra Raisi-Estabragh is funded by the British Heart Foundation. The University of Barcelona receives funding from euCanSHare (EU Horizon 2020 Programme grant agreement No 825903).
Disclosures: None.
References and notes
1Abstract title: Higher consumption of red and processed meat is associated with adverse cardiovascular magnetic resonance morpho-functional phenotypes: A study of 19,408 UK Biobank participants.
2Sinha R, Cross AJ, Graubard BI, et al. Meat intake and mortality: a prospective study of over half a million people. Arch Intern Med. 2009;169:562–571.
3Kontogianni MD, Panagiotakos DB, Pitsavos C, et al. Relationship between meat intake and the development of acute coronary syndromes: The CARDIO2000 case-control study. Eur J Clin Nutr. 2008;62:171–177.
4The study was a collaboration between Queen Mary University of London, UK, the University of Barcelona, Spain, and the MRC Lifecourse Epidemiology Unit in Southampton, UK. The UK Biobank is a large-scale biomedical database and research resource, containing in-depth genetic and health information from half a million UK participants.
About the European Association of Preventive Cardiology
The European Association of Preventive Cardiology (EAPC) is a branch of the ESC. Its mission is to promote excellence in research, practice, education and policy in cardiovascular health, primary and secondary prevention.
About ESC Preventive Cardiology 2021 #ESCPrev2021
ESC Preventive Cardiology 2021, formerly EuroPrevent, is the leading international congress on preventive cardiology and the online annual congress of the European Association of Preventive Cardiology (EAPC) of the European Society of Cardiology (ESC).
About the European Society of Cardiology
The European Society of Cardiology brings together health care professionals from more than 150 countries, working to advance cardiovascular medicine and help people lead longer, healthier lives.
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