Associations between types and sources of dietary carbohydrates and cardiovascular disease risk: a prospective cohort study of UK Biobank participants

Abstract Background Recent studies have reported that the associations between dietary carbohydrates and cardiovascular disease (CVD) may depend on the quality, rather than the quantity, of carbohydrates consumed. This study aimed to assess the associations between types and sources of dietary carbo...

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Main Authors: Rebecca K. Kelly, Tammy Y. N. Tong, Cody Z. Watling, Andrew Reynolds, Carmen Piernas, Julie A. Schmidt, Keren Papier, Jennifer L. Carter, Timothy J. Key, Aurora Perez-Cornago
Format: Article
Language:English
Published: BMC 2023-02-01
Series:BMC Medicine
Subjects:
Online Access:https://doi.org/10.1186/s12916-022-02712-7
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author Rebecca K. Kelly
Tammy Y. N. Tong
Cody Z. Watling
Andrew Reynolds
Carmen Piernas
Julie A. Schmidt
Keren Papier
Jennifer L. Carter
Timothy J. Key
Aurora Perez-Cornago
author_facet Rebecca K. Kelly
Tammy Y. N. Tong
Cody Z. Watling
Andrew Reynolds
Carmen Piernas
Julie A. Schmidt
Keren Papier
Jennifer L. Carter
Timothy J. Key
Aurora Perez-Cornago
author_sort Rebecca K. Kelly
collection DOAJ
description Abstract Background Recent studies have reported that the associations between dietary carbohydrates and cardiovascular disease (CVD) may depend on the quality, rather than the quantity, of carbohydrates consumed. This study aimed to assess the associations between types and sources of dietary carbohydrates and CVD incidence. A secondary aim was to examine the associations of carbohydrate intakes with triglycerides within lipoprotein subclasses. Methods A total of 110,497 UK Biobank participants with ≥ two (maximum five) 24-h dietary assessments who were free from CVD and diabetes at baseline were included. Multivariable-adjusted Cox regressions were used to estimate risks of incident total CVD (4188 cases), ischaemic heart disease (IHD; 3138) and stroke (1124) by carbohydrate intakes over a median follow-up time of 9.4 years, and the effect of modelled dietary substitutions. The associations of carbohydrate intakes with plasma triglycerides within lipoprotein subclasses as measured by nuclear magnetic resonance (NMR) spectroscopy were examined in 26,095 participants with baseline NMR spectroscopy measurements. Results Total carbohydrate intake was not associated with CVD outcomes. Free sugar intake was positively associated with total CVD (HR; 95% CI per 5% of energy, 1.07;1.03–1.10), IHD (1.06;1.02–1.10), and stroke (1.10;1.04–1.17). Fibre intake was inversely associated with total CVD (HR; 95% CI per 5 g/d, 0.96;0.93–0.99). Modelled isoenergetic substitution of 5% of energy from refined grain starch with wholegrain starch was inversely associated with total CVD (0.94;0.91–0.98) and IHD (0.94;0.90–0.98), and substitution of free sugars with non-free sugars was inversely associated with total CVD (0.95;0.92–0.98) and stroke (0.91;0.86–0.97). Free sugar intake was positively associated with triglycerides within all lipoproteins. Conclusions Higher free sugar intake was associated with higher CVD incidence and higher triglyceride concentrations within all lipoproteins. Higher fibre intake and replacement of refined grain starch and free sugars with wholegrain starch and non-free sugars, respectively, may be protective for incident CVD.
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spelling doaj.art-556e7622dbf242b8b48fa130da98dcca2023-03-22T11:32:32ZengBMCBMC Medicine1741-70152023-02-0121111610.1186/s12916-022-02712-7Associations between types and sources of dietary carbohydrates and cardiovascular disease risk: a prospective cohort study of UK Biobank participantsRebecca K. Kelly0Tammy Y. N. Tong1Cody Z. Watling2Andrew Reynolds3Carmen Piernas4Julie A. Schmidt5Keren Papier6Jennifer L. Carter7Timothy J. Key8Aurora Perez-Cornago9Cancer Epidemiology Unit, Nuffield Department of Population Health, University of OxfordCancer Epidemiology Unit, Nuffield Department of Population Health, University of OxfordCancer Epidemiology Unit, Nuffield Department of Population Health, University of OxfordDepartment of Medicine, University of OtagoNuffield Department of Primary Care Health Sciences, University of OxfordCancer Epidemiology Unit, Nuffield Department of Population Health, University of OxfordCancer Epidemiology Unit, Nuffield Department of Population Health, University of OxfordClinical Trial Service Unit and Epidemiological Studies Unit, University of OxfordCancer Epidemiology Unit, Nuffield Department of Population Health, University of OxfordCancer Epidemiology Unit, Nuffield Department of Population Health, University of OxfordAbstract Background Recent studies have reported that the associations between dietary carbohydrates and cardiovascular disease (CVD) may depend on the quality, rather than the quantity, of carbohydrates consumed. This study aimed to assess the associations between types and sources of dietary carbohydrates and CVD incidence. A secondary aim was to examine the associations of carbohydrate intakes with triglycerides within lipoprotein subclasses. Methods A total of 110,497 UK Biobank participants with ≥ two (maximum five) 24-h dietary assessments who were free from CVD and diabetes at baseline were included. Multivariable-adjusted Cox regressions were used to estimate risks of incident total CVD (4188 cases), ischaemic heart disease (IHD; 3138) and stroke (1124) by carbohydrate intakes over a median follow-up time of 9.4 years, and the effect of modelled dietary substitutions. The associations of carbohydrate intakes with plasma triglycerides within lipoprotein subclasses as measured by nuclear magnetic resonance (NMR) spectroscopy were examined in 26,095 participants with baseline NMR spectroscopy measurements. Results Total carbohydrate intake was not associated with CVD outcomes. Free sugar intake was positively associated with total CVD (HR; 95% CI per 5% of energy, 1.07;1.03–1.10), IHD (1.06;1.02–1.10), and stroke (1.10;1.04–1.17). Fibre intake was inversely associated with total CVD (HR; 95% CI per 5 g/d, 0.96;0.93–0.99). Modelled isoenergetic substitution of 5% of energy from refined grain starch with wholegrain starch was inversely associated with total CVD (0.94;0.91–0.98) and IHD (0.94;0.90–0.98), and substitution of free sugars with non-free sugars was inversely associated with total CVD (0.95;0.92–0.98) and stroke (0.91;0.86–0.97). Free sugar intake was positively associated with triglycerides within all lipoproteins. Conclusions Higher free sugar intake was associated with higher CVD incidence and higher triglyceride concentrations within all lipoproteins. Higher fibre intake and replacement of refined grain starch and free sugars with wholegrain starch and non-free sugars, respectively, may be protective for incident CVD.https://doi.org/10.1186/s12916-022-02712-7Coronary heart diseaseStrokeNutritional epidemiologyPrimary preventionCarbohydrates
spellingShingle Rebecca K. Kelly
Tammy Y. N. Tong
Cody Z. Watling
Andrew Reynolds
Carmen Piernas
Julie A. Schmidt
Keren Papier
Jennifer L. Carter
Timothy J. Key
Aurora Perez-Cornago
Associations between types and sources of dietary carbohydrates and cardiovascular disease risk: a prospective cohort study of UK Biobank participants
BMC Medicine
Coronary heart disease
Stroke
Nutritional epidemiology
Primary prevention
Carbohydrates
title Associations between types and sources of dietary carbohydrates and cardiovascular disease risk: a prospective cohort study of UK Biobank participants
title_full Associations between types and sources of dietary carbohydrates and cardiovascular disease risk: a prospective cohort study of UK Biobank participants
title_fullStr Associations between types and sources of dietary carbohydrates and cardiovascular disease risk: a prospective cohort study of UK Biobank participants
title_full_unstemmed Associations between types and sources of dietary carbohydrates and cardiovascular disease risk: a prospective cohort study of UK Biobank participants
title_short Associations between types and sources of dietary carbohydrates and cardiovascular disease risk: a prospective cohort study of UK Biobank participants
title_sort associations between types and sources of dietary carbohydrates and cardiovascular disease risk a prospective cohort study of uk biobank participants
topic Coronary heart disease
Stroke
Nutritional epidemiology
Primary prevention
Carbohydrates
url https://doi.org/10.1186/s12916-022-02712-7
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