A healthful plant-based diet is associated with higher health-related quality of life among older adults independent of circulating CRP: a cross-sectional analysis from the Lifelines Cohort Study

Plant-based diets (PBD) have been found to be environmentally sustainable and beneficial for health. Observational research showed that higher plant-based diet quality improves health-related quality of life (HRQoL) in adult women, however this is unclear for older adults. This association may be du...

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Main Authors: Kerstin Schorr, Marian Beekman, Venetka Agayn, Jeanne H.M. de Vries, Lisette C.P.G.M. de Groot, P. Eline Slagboom
Format: Article
Language:English
Published: Cambridge University Press 2025-01-01
Series:Journal of Nutritional Science
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Online Access:https://www.cambridge.org/core/product/identifier/S2048679025100232/type/journal_article
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author Kerstin Schorr
Marian Beekman
Venetka Agayn
Jeanne H.M. de Vries
Lisette C.P.G.M. de Groot
P. Eline Slagboom
author_facet Kerstin Schorr
Marian Beekman
Venetka Agayn
Jeanne H.M. de Vries
Lisette C.P.G.M. de Groot
P. Eline Slagboom
author_sort Kerstin Schorr
collection DOAJ
description Plant-based diets (PBD) have been found to be environmentally sustainable and beneficial for health. Observational research showed that higher plant-based diet quality improves health-related quality of life (HRQoL) in adult women, however this is unclear for older adults. This association may be due to anti-inflammatory properties of PBD. Older adults, prone to chronic inflammation, may therefore profit from PBD. We investigated the relation between PBD and HRQoL in older adults of both sexes and tested whether the effects are associated with circulating high-sensitivity C-reactive protein (hsCRP) levels. We used data of the population-based Lifelines Cohort Study (n = 6,635, mean age = 65.2 years) and a subsample in which hsCRP was measured (n = 2,251, mean age = 65.2 years). We applied a plant-based diet index measuring adherence to a healthful (hPDI) and an unhealthful (uPDI) plant-based diet based on food frequency questionnaires. The RAND-36 questionnaire was applied as measure of HRQoL, from which we derived physical and mental HRQoL. Older adults with the highest adherence to a hPDI had respectively 15% and 12% greater odds for high physical quality of life and mental quality of life. Meanwhile, higher adherence to uPDI was associated with respectively 16% and 13% lower odds for high physical and mental quality of life. An additive but no interactive effect of hsCRP on the association between PBD and HRQoL has been observed. Adherence to a healthful plant-based diet and circulating levels of inflammation are independently associated with physical and mental HRQoL. Mechanisms other than inflammation through which PBD could influence HRQoL may be explored in further research.
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spelling doaj-art-0dd153b63d9d47fb95a2ca9e6c8f3bf62025-08-20T03:18:22ZengCambridge University PressJournal of Nutritional Science2048-67902025-01-011410.1017/jns.2025.10023A healthful plant-based diet is associated with higher health-related quality of life among older adults independent of circulating CRP: a cross-sectional analysis from the Lifelines Cohort StudyKerstin Schorr0https://orcid.org/0000-0002-5633-3002Marian Beekman1Venetka Agayn2Jeanne H.M. de Vries3Lisette C.P.G.M. de Groot4P. Eline Slagboom5Section of Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands Innoso BV, Ruychrocklaan 68, 2597 EP The Hague, The NetherlandsSection of Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The NetherlandsInnoso BV, Ruychrocklaan 68, 2597 EP The Hague, The NetherlandsDivision of Human Nutrition and Health, Wageningen University, P.O. Box 176700 AA Wageningen, The NetherlandsDivision of Human Nutrition and Health, Wageningen University, P.O. Box 176700 AA Wageningen, The NetherlandsSection of Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The NetherlandsPlant-based diets (PBD) have been found to be environmentally sustainable and beneficial for health. Observational research showed that higher plant-based diet quality improves health-related quality of life (HRQoL) in adult women, however this is unclear for older adults. This association may be due to anti-inflammatory properties of PBD. Older adults, prone to chronic inflammation, may therefore profit from PBD. We investigated the relation between PBD and HRQoL in older adults of both sexes and tested whether the effects are associated with circulating high-sensitivity C-reactive protein (hsCRP) levels. We used data of the population-based Lifelines Cohort Study (n = 6,635, mean age = 65.2 years) and a subsample in which hsCRP was measured (n = 2,251, mean age = 65.2 years). We applied a plant-based diet index measuring adherence to a healthful (hPDI) and an unhealthful (uPDI) plant-based diet based on food frequency questionnaires. The RAND-36 questionnaire was applied as measure of HRQoL, from which we derived physical and mental HRQoL. Older adults with the highest adherence to a hPDI had respectively 15% and 12% greater odds for high physical quality of life and mental quality of life. Meanwhile, higher adherence to uPDI was associated with respectively 16% and 13% lower odds for high physical and mental quality of life. An additive but no interactive effect of hsCRP on the association between PBD and HRQoL has been observed. Adherence to a healthful plant-based diet and circulating levels of inflammation are independently associated with physical and mental HRQoL. Mechanisms other than inflammation through which PBD could influence HRQoL may be explored in further research.https://www.cambridge.org/core/product/identifier/S2048679025100232/type/journal_articleDietary patternInflammationOlder adultsPlant-based dietSubjective well-being
spellingShingle Kerstin Schorr
Marian Beekman
Venetka Agayn
Jeanne H.M. de Vries
Lisette C.P.G.M. de Groot
P. Eline Slagboom
A healthful plant-based diet is associated with higher health-related quality of life among older adults independent of circulating CRP: a cross-sectional analysis from the Lifelines Cohort Study
Journal of Nutritional Science
Dietary pattern
Inflammation
Older adults
Plant-based diet
Subjective well-being
title A healthful plant-based diet is associated with higher health-related quality of life among older adults independent of circulating CRP: a cross-sectional analysis from the Lifelines Cohort Study
title_full A healthful plant-based diet is associated with higher health-related quality of life among older adults independent of circulating CRP: a cross-sectional analysis from the Lifelines Cohort Study
title_fullStr A healthful plant-based diet is associated with higher health-related quality of life among older adults independent of circulating CRP: a cross-sectional analysis from the Lifelines Cohort Study
title_full_unstemmed A healthful plant-based diet is associated with higher health-related quality of life among older adults independent of circulating CRP: a cross-sectional analysis from the Lifelines Cohort Study
title_short A healthful plant-based diet is associated with higher health-related quality of life among older adults independent of circulating CRP: a cross-sectional analysis from the Lifelines Cohort Study
title_sort healthful plant based diet is associated with higher health related quality of life among older adults independent of circulating crp a cross sectional analysis from the lifelines cohort study
topic Dietary pattern
Inflammation
Older adults
Plant-based diet
Subjective well-being
url https://www.cambridge.org/core/product/identifier/S2048679025100232/type/journal_article
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