Dietary sources and determinants of soy isoflavone intake among midlife Chinese Women in Hong Kong

 Posted by Chantel M. Contributed by US National Library of Medicine National Institutes of Health

In the study to evaluate the dietary sources, intake levels, and determinants of soy isoflavone intake were examined using 3217 dietary recalls (DR) collected from 141 Hong Kong Chinese women aged 50-61 y. Multiple-pass 24-h DR were administered by phone by trained interviewers on 23 random, nonconsecutive days to participants over a 12-mo period from 2001 to 2002, by Chan SG, Ho SC, Kreiger N, Darlington G, So KF, Chong PY., posted in US National Library of Medicine National Institutes of Health, researchers found that the daily intake of total isoflavones was 7.8 +/- 5.6 mg in the study population. Non-Cantonese women had a higher intake of 10.7 +/- 7.6 mg compared with 7.3 +/- 5.0 mg in Cantonese women (P = 0.04). Altogether, 22 foods contributed approximately 90% of the total isoflavone intake. Soft tofu alone accounted for approximately 21% of the isoflavone intake, followed by bean curd skin (7.1%), name-brand soybean milk (6.3%), homemade soybean milk (6.2%), and generic soybean milk (5.8%). Combined, these 5 food items contributed 46% of the total dietary isoflavones.


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