Study finds that higher dietary intake of flavonol is linked to reduced all-cause mortality and lower risk of Alzheimer's disease, cancer, and cardiovascular disease in US adults.
By Dr. Sushama R. Chaphalkar, PhD.Feb 26 2024Reviewed by Susha Cheriyedath, M.Sc. In a recent prospective cohort study published in the journal Scientific Reports, researchers investigated the association between flavonol intake and cause-specific and all-cause mortality risk in adults in the United States.
Background Flavonoids are biologically active polyphenolic compounds found in various plant-based foods. Among the six subclasses of flavonoids, flavonols are the most prevalent and active. Primary flavonols like quercetin, kaempferol, myricetin, and isorhamnetin are abundant in tea, onions, and berries.
Flavonol-rich About the study The study included 11,679 individuals aged≥ 20 who completed questionnaires, in-person assessments, and laboratory tests. The exclusion criteria were lack of flavonol intake and missing basic and demographic information. Flavonol intake data for the present study were derived from the US Department of Agriculture Survey Food and Beverage Flavonoid Values database .
Results and discussion Participants with the highest total flavonol intake tended to be male, younger, Non-Hispanic White, married, educated, above the poverty line, alcohol consumers, with BMI 18.5–30.0 kg/m2 and had a history of DM, hypertension, hyperlipidemia, congestive heart failure, coronary heart disease, angina, heart attack, and stroke. Increasing total flavonol intake showed a declining trend in all-cause mortality as well as AD, cancer, and CVD-specific mortality .
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