Document Detail


Intake of dietary phytoestrogens by Dutch women.
MedLine Citation:
PMID:  12042453     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Higher consumption of phytoestrogens might be protective against certain chronic diseases. Accurate quantification of habitual phytoestrogen intake is important for assessing associations between phytoestrogens and risk for certain diseases. The aim of this study was to estimate dietary intake of phytoestrogens in Dutch middle-aged and elderly women and to describe their main sources. Women were recruited between 1993 and 1997 and aged 50-69 y at enrollment (Prospect-EPIC; n = 17,357). A detailed food frequency questionnaire referring to the preceding year was filled in at recruitment. A literature search was conducted to obtain data regarding content of the isoflavones daidzein, genistein, formononetin, biochanin A, the coumestan coumesterol and the lignans matairesinol and secoisolariciresinol in relevant food items. Concentrations of each phytoestrogen in each food item were subsequently grouped by seven categories; group scores were multiplied by daily intakes of food items and then summed across food items to produce for each participant a total daily intake score for each phytoestrogen. Approximately 75% of participants were postmenopausal at recruitment. The mean age was 57 y. Geometric means of daily intake of daidzein, genistein, formononetin, biochanin A, coumesterol, matairesinol and secoisolariciresinol were 0.15, 0.16, 0.08, 0.001, <0.001, 0.07 and 0.93 mg, respectively. The main sources for isoflavones were peas and beans, nuts, grain products, coffee, tea and soy products. The main sources for coumestans were peas, beans and other vegetables. The main sources of lignans were grain products, fruit and alcoholic beverages (red and white wines). We conclude that intake levels of phytoestrogen in our study population are low; however, they are comparable with intake levels previously reported for other Western cohorts. In this population, phytoestrogen intake consisted largely of lignans.
Authors:
Lital Keinan Boker; Yvonne T Van der Schouw; Miriam J J De Kleijn; Paul F Jacques; Diederick E Grobbee; Petra H M Peeters
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of nutrition     Volume:  132     ISSN:  0022-3166     ISO Abbreviation:  J. Nutr.     Publication Date:  2002 Jun 
Date Detail:
Created Date:  2002-06-03     Completed Date:  2002-06-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0404243     Medline TA:  J Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1319-28     Citation Subset:  IM    
Affiliation:
The Julius Center for General Practice and Patient Oriented Research, University Medical Center Utrecht, 3508 GA, Utrecht, The Netherlands. l.k.boker@jc.azu.nl
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MeSH Terms
Descriptor/Qualifier:
Aged
Cohort Studies
Diet Surveys
Estrogens, Non-Steroidal / administration & dosage*,  analysis
Female
Humans
Isoflavones / administration & dosage*,  analysis
Lignans / administration & dosage*,  analysis
Middle Aged
Netherlands / epidemiology
Phytoestrogens
Plant Preparations
Postmenopause
Questionnaires
Women's Health
Chemical
Reg. No./Substance:
0/Estrogens, Non-Steroidal; 0/Isoflavones; 0/Lignans; 0/Phytoestrogens; 0/Plant Preparations

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