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Consumption of individual saturated fatty acids and the risk of myocardial infarction in a UK and a Danish cohort

Published version
Peer-reviewed

Type

Article

Change log

Authors

Praagman, J 
Vissers, LET 
Mulligan, AA 
Dam Laursen, AS 
Beulens, JWJ 

Abstract

Abstract Background: The effect of individual saturated fatty acids (SFAs) on serum cholesterol levels depends on their carbon-chain length. Whether the association with myocardial infarction (MI) also differs across individual SFAs is unclear. We examined the association between consumption of individual SFAs, differing in chain lengths ranging from 4 through 18 carbons, and risk of MI. Methods: We used data from 22050 and 53375 participants from EPIC-Norfolk (UK) and EPIC-Denmark, respectively. Baseline SFA intakes were assessed through validated, country-specific food frequency questionnaires. Cox regression analysis was used to estimate associations between intakes of individual SFAs and MI risk, for each cohort separately. Results: During median follow-up times of 18.8 years in EPIC-Norfolk and 13.6 years in Denmark, respectively, 1204 and 2260 MI events occurred. Mean (±SD) total SFA intake was 13.3 (±3.5) en% in EPIC-Norfolk, and 12.5 (±2.6) en% in EPIC-Denmark. After multivariable adjustment, intakes of C12:0 (lauric acid) and C14:0 (myristic acid) inversely associated with MI risk in EPIC-Denmark (HR upper versus lowest quintile: 0.80 (95%CI:0.66,0.96) for both SFAs). Intakes in the third and fourth quintiles of C4:0-C10:0 also associated with lower MI risk in EPIC-Denmark. Moreover, substitution of C16:0 (palmitic acid) and C18:0 (stearic acid) with plant proteins resulted in a reduction of MI risk in EPIC-Denmark (HR per 1 energy%: 0.86 (95%CI:0.78,0.95) and 0.87 (95%CI:0.79,0.96) respectively). No such associations were found in EPIC-Norfolk. Conclusion: The results from the present study suggest that the association between SFA and MI risk depends on the carbon chain-length of the SFA.

Description

Keywords

Cohort study, Diet, Myocardial infarction, Saturated fatty acids, Adult, Aged, Denmark, Diet, Healthy, Dietary Fats, Fatty Acids, Female, Follow-Up Studies, Humans, Male, Middle Aged, Myocardial Infarction, Plant Proteins, Dietary, Risk Factors, United Kingdom

Journal Title

International Journal of Cardiology

Conference Name

Journal ISSN

0167-5273
1874-1754

Volume Title

Publisher

Elsevier
Sponsorship
Medical Research Council (MC_UU_12015/1)
MRC (MC_PC_13048)
Medical Research Council (MR/N003284/1)
Department of Health (via National Institute for Health Research (NIHR)) (NF-SI-0617-10149)
Department of Health (via National Institute for Health Research (NIHR)) (NF-SI-0512-10135)
Medical Research Council (G0401527)
Medical Research Council (G1000143)
Medical Research Council (MC_UU_12015/3)
Medical Research Council (MC_UU_12015/4)
Cancer Research Uk (None)
EPIC-Norfolk: All authors report programme grants from Cancer Research UK (C864/A8257, C864/A14136) and the Medical Research Council (MRC) (G0401527, G1000143) during the study. NJW is also supported by the MRC (grant numbers MC_UU_12015/3, MC_UU_12015/4). 2 EPIC-Denmark: The primary data collection for the Diet, Cancer and Health cohort was funded by the Danish Cancer Society.