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Estimation of flavonoid intake in older Australians: secondary data analysis of the blue mountains eye study

Journal Article


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.

Publication Date


  • 2015

Citation


  • Caldwell, K., Charlton, K. E., Russell, J., Mitchell, P. & Flood, V. M. (2015). Estimation of flavonoid intake in older Australians: secondary data analysis of the blue mountains eye study. Journal of Nutrition in Gerontology and Geriatrics, 34 (4), 388-398.

Scopus Eid


  • 2-s2.0-84947426144

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/3387

Number Of Pages


  • 10

Start Page


  • 388

End Page


  • 398

Volume


  • 34

Issue


  • 4

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.

Publication Date


  • 2015

Citation


  • Caldwell, K., Charlton, K. E., Russell, J., Mitchell, P. & Flood, V. M. (2015). Estimation of flavonoid intake in older Australians: secondary data analysis of the blue mountains eye study. Journal of Nutrition in Gerontology and Geriatrics, 34 (4), 388-398.

Scopus Eid


  • 2-s2.0-84947426144

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/3387

Number Of Pages


  • 10

Start Page


  • 388

End Page


  • 398

Volume


  • 34

Issue


  • 4