Associations between habitual flavonoid intake and hospital admissions for atherosclerotic cardiovascular disease: a prospective cohort study

Abstract

Background Flavonoids, compounds found in plant-based foods and beverages, might ameliorate vascular damage and atherosclerosis. Therefore, our aim was to assess the association between flavonoid intake and hospital admissions due to atherosclerotic cardiovascular disease.Methods In this prospective cohort study, participants from the Danish Diet, Cancer, and Health Study were crosslinked with Danish nationwide registries. Eligible participants were aged 50-65 years, had no previous history of atherosclerotic cardiovascular disease, and had completed a food-frequency questionnaire at baseline. We examined associations between flavonoid intake (calculated from food-frequency questionnaires with use of the Phenol-Explorer database) and hospital admissions for atherosclerotic cardiovascular disease, ischaemic heart disease, ischaemic stroke, or peripheral arterial disease. We obtained hazard ratios (HRs) using restricted cubic splines based on Cox proportional hazards models.Findings Of the participants recruited to the Danish Diet, Cancer, and Health study between 1993 and 1997, our study population was comprised of 53 552 participants, with a median follow-up of 21 years (IQR 15-22). During follow-up, 8773 participants were admitted to hospital for atherosclerotic cardiovascular disease. We observed non-linear associations between flavonoid intake and hospital admissions, plateauing at total flavonoid intakes of approximately 1000 mg per day. Compared with an intake of 175 mg per day, an intake of 1000 mg per day was associated with a 14% lower risk of atherosclerotic cardiovascular disease (HR 0·86, 95% CI 0·81-0·91). For disease subtypes, we observed a 9% lower risk of ischaemic heart disease (0·91, 0·85-0·98), a non-significant 9% lower risk of ischaemic stroke (0·91, 0·82-1·01), and a 32% lower risk of peripheral artery disease (0·68, 0·60-0·78). The overall associations were stronger in smokers than in non-smokers, as well as stronger in consumers of high (>20 g per day) quantities of alcohol than in those consuming low-to-moderate (≤20 g per day) quantities.Interpretation Our results suggest that ensuring an adequate consumption of flavonoid-rich foods, particularly in subpopulations at risk of atherosclerosis such as smokers and consumers of high quantities of alcohol might mitigate some of the risk of atherosclerotic cardiovascular disease. More studies are needed to support and validate these data.

Dietary flavanols improve cerebral cortical oxygenation and cognition in healthy adults

“…Lifespan wear and tear of the vascular system due to poor nutrition and lack of fitness, among other factors, can accelerate cognitive aging and lead to dementia. There is epidemiological evidence suggesting that flavonoids, a group of small molecules present in fruits and vegetables, can protect against vascular disease and cardiovascularrelated mortality [1][2][3][4] . In particular, cocoa flavanols, a sub-group of flavonoids (also present in berries, grapes, apples and tea) have been shown to improve endothelial function in humans quite rapidly (within 1-2 h) by enhancing vasodilatory properties of peripheral arteries 5,6 .…”

Isobacachalcone induces autophagy and improves the outcome of immunogenic chemotherapy

“…ISO was initially isolated from Psoralea corylifolia, but has also been identified in other plants, including in Angelica keiskei 50 , Artocarpus species 46 , Cullen corylifolium 77 , Dorstena barteri 38 , Erythrena fusca 78 , Fatoua pilosa 44 , Morus alba 79 , and Piper longum 72 . This suggests that ISO is rather prevalent in plants, perhaps contributing to the broad pro-health effects of plant-enriched diets 80,81 . However, additional studies are required to confirm this conjecture.…”

Dietary Flavonoids and Cardiovascular Disease: A Comprehensive Dose–Response Meta‐Analysis

“…The studies included 1 501 645 individuals and a total of 33 637 cases of CVD, 23 664 of CHD, and 11 860 of stroke. The countries where the studies were conducted were US (n = 12), [25,28,31,34,37,39,[41][42][43]51,53,54] Europe (n = 21), [22][23][24]26,27,29,30,32,33,35,36,40,45,48,49,52,[56][57][58][59][60] Asia (n = 5), [38,44,46,50,55] and Australia (n = 1). [47] Food frequency questionnaires (FFQs) were used as a tool to collect dietary information in 28 studies, [25,26,28,29,31,32,34,[36][37][38]…”