Consumption of Meat, Fish, Dairy Products, and Eggs and Risk of Ischemic Heart Disease

Abstract

BACKGROUND: There is uncertainty about the relevance of animal foods to the pathogenesis of ischemic heart disease (IHD). We examined meat, fish, dairy products, and eggs and risk for IHD in the pan-European EPIC cohort (European Prospective Investigation Into Cancer and Nutrition).

METHODS: In this prospective study of 409 885 men and women in 9 European countries, diet was assessed with validated questionnaires and calibrated with 24-hour recalls. Lipids and blood pressure were measured in a subsample. During a mean of 12.6 years of follow-up, 7198 participants had a myocardial infarction or died of IHD. The relationships of animal foods with risk were examined with Cox regression with adjustment for other animal foods and relevant covariates.

RESULTS: The hazard ratio (HR) for IHD was 1.19 (95% CI, 1.06-1.33) for a 100-g/d increment in intake of red and processed meat, and this remained significant after exclusion of the first 4 years of follow-up (HR, 1.25 [95% CI, 1.09-1.42]). Risk was inversely associated with intakes of yogurt (HR, 0.93 [95% CI, 0.89-0.98] per 100-g/d increment), cheese (HR, 0.92 [95% CI, 0.86-0.98] per 30-g/d increment), and eggs (HR, 0.93 [95% CI, 0.88-0.99] per 20-g/d increment); the associations with yogurt and eggs were attenuated and nonsignificant after exclusion of the first 4 years of follow-up. Risk was not significantly associated with intakes of poultry, fish, or milk. In analyses modeling dietary substitutions, replacement of 100 kcal/d from red and processed meat with 100 kcal/d from fatty fish, yogurt, cheese, or eggs was associated with ≈20% lower risk of IHD. Consumption of red and processed meat was positively associated with serum non-high-density lipoprotein cholesterol concentration and systolic blood pressure, and consumption of cheese was inversely associated with serum non-high-density lipoprotein cholesterol.

CONCLUSIONS: Risk for IHD was positively associated with consumption of red and processed meat and inversely associated with consumption of yogurt, cheese, and eggs, although the associations with yogurt and eggs may be influenced by reverse causation bias. It is not clear whether the associations with red and processed meat and cheese reflect causality, but they were consistent with the associations of these foods with plasma non-high-density lipoprotein cholesterol and for red and processed meat with systolic blood pressure, which could mediate such effects.

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Reference:

Key TJ, Appleby PN, Bradbury KE, Sweeting M, Wood A, Johansson I, Kühn T, Steur M, Weiderpass E, Wennberg M, Lund Würtz AM, Agudo A, Andersson J, Arriola L, Boeing H, Boer JMA, Bonnet F, Boutron-Ruault MC, Cross AJ, Ericson U, Fagherazzi G, Ferrari P, Gunter M, Huerta JM, Katzke V, Khaw KT, Krogh V, La Vecchia C, Matullo G, Moreno-Iribas C, Naska A, Nilsson LM, Olsen A, Overvad K, Palli D, Panico S, Molina-Portillo E, Quirós JR, Skeie G, Sluijs I, Sonestedt E, Stepien M, Tjønneland A, Trichopoulou A, Tumino R, Tzoulaki I, van der Schouw YT, Verschuren WMM, di Angelantonio E, Langenberg C, Forouhi N, Wareham N, Butterworth A, Riboli E, Danesh J. Consumption of Meat, Fish, Dairy Products, and Eggs and Risk of Ischemic Heart Disease. Circulation. 2019 Jun 18;139(25):2835-2845. doi:10.1161/CIRCULATIONAHA.118.038813. Epub 2019 Apr 22. PubMed PMID: 31006335.



Keywords: dairy products, eggs, fish, heart diseases, meat, red and processed meat, non-high-density lipoprotein cholesterol, cheese, yogurt, lipids and blood pressure, ischemic heart disease.

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