Document Detail

Flavonol and flavone intakes in US health professionals.
MedLine Citation:
PMID:  12396158     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine flavonoid content of US foods, mean individual intakes, major food sources, and associations with other nutrients. SUBJECTS: US men (n = 37,886) and women (n = 78,886) who completed a semiquantitative food frequency questionnaire in 1990. DESIGN: Men and women completed a questionnaire that listed 132 items, including onions as a garnish and as a vegetable, rings, or soup. Foods known to be important sources of flavonols (quercetin, myricetin, and kaempferol) and flavones (luteolin and apigenin) were analyzed biochemically. The database contained values from the analyzed foods, previously published values from Dutch foods, and imputed values. STATISTICS: Means and standard deviations, contributions of foods to summed intake of each flavonoid, and Pearson correlation coefficients were calculated. RESULTS: Of the flavonols and flavones studied, quercetin contributed 73% in women and 76% in men. The mean flavonol and flavone intake was approximately 20 to 22 mg per day. Onions, tea, and apples contained the highest amounts of flavonols and flavones. Correlations between the intakes of flavonols and flavones and intakes of beta carotene, vitamin E, vitamin C, folic acid, and dietary fiber did not exceed 0.35. CONCLUSION: Although flavonols and flavones are subgroups of flavonoids hypothesized to be associated with reduced risk of coronary heart disease, data on flavonoid intake has been limited due to the lack of food composition data. Nutrition professionals can use these and other published data to estimate intake of flavonoids in their populations. This work should facilitate the investigation of this class of dietary antioxidants as a contributor to disease prevention.
Laura Sampson; Eric Rimm; Peter C H Hollman; Jeanne H M de Vries; Martijn B Katan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Dietetic Association     Volume:  102     ISSN:  0002-8223     ISO Abbreviation:  J Am Diet Assoc     Publication Date:  2002 Oct 
Date Detail:
Created Date:  2002-10-24     Completed Date:  2002-11-14     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7503061     Medline TA:  J Am Diet Assoc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1414-20     Citation Subset:  AIM; IM    
Department of Nutrition, Harvard School of Public Health, Boston, MA 02115, USA.
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MeSH Terms
Antioxidants / administration & dosage*
Chronic Disease
Diet Surveys*
Flavonoids / administration & dosage*
Food Analysis
Fruit / chemistry
Middle Aged
Onions / chemistry
United States
Vegetables / chemistry
Reg. No./Substance:
0/Antioxidants; 0/Flavonoids; 0/Flavonols; 0/Kaempferols; 117-39-5/Quercetin; 491-70-3/Luteolin; 520-18-3/kaempferol; 520-36-5/Apigenin; 529-44-2/myricetin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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