Estimated dietary isoflavone intake of Korean population based on National Nutrition Survey

Kim, Jong-Sang; Kwon, Chong-Suk

doi:10.1016/s0271-5317(01)00310-4

Cited by 52 publications

(45 citation statements)

References 10 publications

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“…Table I summarizes the list of food items analyzed and the content (glycoside'/aglycone) of each isoflavone or coumestrol, where the median value was presented for the estimation of daily intake because the individual phytoestrogen contents within each food item were not normally distributed. The content of isoflavones in each food was extensively compared with those reported in other published articles (Choi and Sohn 1998;Choi et al 2000;Kim et al 2000;Kim and Kwon 2001;Lee et al 2002), where the contents were similar among publications with the exception of soy sauce. The content of isoflavones in soy sauce was calculated by referring to specific articles (Choi and Sohn 1998;Kim et al 2000Kim et al , 2003Kim and Kwon 2001) because of the large variation of isoflavones contents in Korean soy sauce (i.e.…”

Section: Distribution Of Isoflavones and Coumestrol In Legumes And Thmentioning

confidence: 97%

“…The content of isoflavones in each food was extensively compared with those reported in other published articles (Choi and Sohn 1998;Choi et al 2000;Kim et al 2000;Kim and Kwon 2001;Lee et al 2002), where the contents were similar among publications with the exception of soy sauce. The content of isoflavones in soy sauce was calculated by referring to specific articles (Choi and Sohn 1998;Kim et al 2000Kim et al , 2003Kim and Kwon 2001) because of the large variation of isoflavones contents in Korean soy sauce (i.e. the contents of isoflavones reported from earlier studies) varied from not-detected (n.d.) to 13.4 mg/g (Choi and Sohn 1998;Kim et al 2000;Kim and Kwon 2001), and no isoflavones were detected from 20 different soy sauces (11 traditional soy sauce, which is homemade soy sauce made from soybean only; six regular soy sauce made from a mixture of soybean and wheat; three acid hydrolyzed soy sauce) in our previous study (Kim et al 2003).…”

Section: Distribution Of Isoflavones and Coumestrol In Legumes And Thmentioning

confidence: 97%

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Estimated intakes of isoflavones and coumestrol in Korean population

Surh¹,

Kim²,

Koh³

et al. 2006

International Journal of Food Sciences and Nutrition

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The dietary intakes and sources of isoflavones and coumestrol were estimated for each age group of Koreans based on data from the Korean Nutrition Survey conducted in 1998. For quantitative data on the levels of isoflavones and coumestrol, our previous study monitoring phytoestrogens in 220 Korean leguminous foodstuffs was employed and the median value for each food was adopted. The total isoflavones and coumestrol intake per capita was estimated as 23.3 mg/day, which constituted 14.2 mg daidzein, 6.7 mg genistein, 0.9 mg glycitein, 1.0 mg formononetin, 0.2 mg biochanin A, and 0.3 mg coumestrol. The top five foods arrowroot, soybean paste, tofu, soybean, and soybean sprout contributed to 88.2% of isoflavone intake, with the corresponding intake from each food being 8.3 mg/day, 4.9 mg/day, 2.6 mg/day, 2.5 mg/day, and 2.0 mg/day, respectively. Starting at age 3-6, the contributions of fermented soy products to the isoflavones intakes were around 30%. Soybean sprout was a major source of coumestrol intake in Koreans. Slight differences in the preference of these foods were observed among the various age groups. As regards the total isoflavone intakes, the highest value was 33.6 mg/day for people age 30-49, followed by age 50-64 (26.4 mg/day), 20-29 (21.0 mg/day), >or=65 (18.8 mg/day), 1-2 (14.5 mg/day), 7-12 (12.4 mg/day), 13-19 (10.1 mg/day), and 3-6 (8.9 mg/day). The intake levels are likely to be exceeded in groups who have preferably consumed high phytoestrogen-containing foods such as soy-protein-based infant formula and arrowroot.

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Section: Distribution Of Isoflavones and Coumestrol In Legumes And Thmentioning

confidence: 97%

Section: Distribution Of Isoflavones and Coumestrol In Legumes And Thmentioning

confidence: 97%

Estimated intakes of isoflavones and coumestrol in Korean population

Surh¹,

Kim²,

Koh³

et al. 2006

International Journal of Food Sciences and Nutrition

View full text Add to dashboard Cite

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“…Obviously, exposure to unsuspected and hidden sources of soy is generally unaccounted for 43 -45 . For UK 'health-conscious' participants and participants with an HHL, the mean consumption of almost all soy product groups was substantially higher than for the rest of the cohort and the estimated daily isoflavone intake was in the range of 15-30 mg day 21 , comparable with levels of consumption in Asian diets 11,37,38 . These estimates have been confirmed by Verkasalo et al 46 , who showed that high soy consumers in EPIC -Oxford had average isoflavone intakes and serum isoflavone concentrations similar to those of Asian populations.…”

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confidence: 88%

Soy product consumption in 10 European countries: the European Prospective Investigation into Cancer and Nutrition (EPIC) study

Keinan‐Boker

Peeters

Mulligan

et al. 2002

Public Health Nutr.

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Objective:The aim of this study was to describe the variation of soy product intake in 10 European countries by using a standardised reference dietary method. A subsidiary aim was to characterise the pattern of soy consumption among a sub-group of participants with a habitual health-conscious lifestyle (HHL), i.e. non-meat eaters who are fish eaters, vegetarians and vegans.Design:A 24-hour dietary recall interview (24-HDR) was conducted among a sample (5–12%) of all cohorts (n = 36 900) in the European Prospective Investigation into Cancer and Nutrition (EPIC). Study participants totalled 35 955 after exclusion of subjects younger than 35 or older than 74 years of age. Soy products were subdivided into seven sub-groups by similarity. Distribution of consumption and crude and adjusted means of intake were computed per soy product group across countries. Intake of soy products was also investigated among participants with an HHL.Results:In total, 195 men and 486 women reported consuming soy products in the 24-HDR interview. Although soy product intake was generally low across all countries, the highest intake level was observed in the UK, due to over-sampling of a large number of participants with an HHL. The most frequently consumed soy foods were dairy substitutes in the UK and France and beans and sprouts among mid-European countries. For both genders, the sub-group of soy dairy substitutes was consumed in the highest quantities (1.2 g day−1 for men; 1.9 g day−1 for women). Participants with an HHL differed substantially from others with regard to demographic, anthropometric and nutritional factors. They consumed higher quantities of almost all soy product groups.Conclusions:Consumption of soy products is low in centres in Western Europe. Soy dairy substitutes are most frequently consumed. Participants with an HHL form a distinct sub-group with higher consumptions of fruit, vegetables, legumes, cereals and soy products compared with the other participants.

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“…Therefore, the present study was performed to investigate the effects of chronically administered genistein on apoptosis of rat brain and the data were confirmed again by an in vitro study with primary cultures of cortical neurons. The in vivo dosage used in this study (2 and 20 mg/day) was determined by based on the recent report that consumption of isoflavones via soybean or soy-based products was as high as 14.88 mg/day in Korean subjects (Kim and Kwon, 2001) and 27.8 mg/day in Japanese subjects (Nakamura et al, 2000).…”

Section: Introductionmentioning

confidence: 99%