title: Estimation of Flavonoid Intake in Older Australians: Secondary Data Analysis of the Blue Mountains Eye Study.
abstract: Flavonoids, consumed in plant-based foods, have been linked to risk reduction of cancers, cardiovascular, and neurodegenerative diseases. The paucity of information on dietary sources and quantities of flavonoid intake in older adults limits interpretation of epidemiological studies that link flavonoid intake with health outcomes in this population. It was our aim to describe total flavonoid intake, including flavonoid subclasses, in older Australians and to identify rich and commonly consumed sources of flavonoids in this age group. Twelve days of weighed food record dietary data from a subsample of the Blue Mountains Eye Study baseline cohort study of older Australians (n = 79) was analyzed using the US Department of Agriculture flavonoid database. Mean intake of flavonoids was estimated to be 683 mg/day (SD = 507) of which flavan-3-ols contributed 92%, followed by flavonols (4%), flavanones (3%), and flavones (<1%). Black tea was the major flavonoid source, providing 89% of total flavonoid intake. No differences in intake between genders were identified. Dietary intake of flavonoids and flavonoid subclasses in older Australians is similar to the one other estimation of intake in Australian older adults and confirms the types of foods that contribute to flavonoid intake among this sample of older Australians.
authors.affiliation: a Faculty of Science, Medicine and Health , University of Wollongong , Wollongong , Australia.
authors.forename: Katherine
authors.initials: K
authors.lastname: Kent
authors.affiliation: a Faculty of Science, Medicine and Health , University of Wollongong , Wollongong , Australia.
authors.forename: Karen E
authors.initials: KE
authors.lastname: Charlton
authors.affiliation: b Faculty of Social Sciences , University of Wollongong , Wollongong , Australia.
authors.forename: Joanna
authors.initials: J
authors.lastname: Russell
authors.affiliation: c Centre for Vision Research , University of Sydney , Sydney , Australia.
authors.forename: Paul
authors.initials: P
authors.lastname: Mitchell
authors.affiliation: d Faculty of Health Sciences , University of Sydney , , Australia.|e St Vincent's Hospital , Sydney , Australia.
authors.forename: Victoria M
authors.initials: VM
authors.lastname: Flood
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D001315:Australia; D015331:Cohort Studies; D016208:Databases, Factual; D004032:Diet; D015930:Diet Records; D005128:Eye Diseases; D005260:Female; D005419:Flavonoids / Q000008:administration & dosage* / Q000032:analysis; D005502:Food; D005504:Food Analysis; D006304:Health Status; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D011795:Surveys and Questionnaires; D013662:Tea; D014481:United States; D016885:United States Department of Agriculture
chemical_list: D005419:Flavonoids; D013662:Tea; C404987:flavan-3-ol
keywords: Blue Mountains Eye Study; dietary intake; flavonoid