Bioavailable zinc intake of Korean adults in relation to the phytate content of Korean foods

Joung, Hyojee; Nam, Gayoung; Yoon, Suin; Lee, Jeemin; Shim, Jae Eun; Paik, Hee Young

doi:10.1016/j.jfca.2003.10.002

Cited by 33 publications

(34 citation statements)

References 14 publications

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“…Phytate levels in ASF and ABF are within the range reported for groups of cereals and legumes, which varies from 0.19 g to 1.37 g 100 g -1 (JOUNG et al, 2004).…”

Section: Resultssupporting

confidence: 72%

Chemical constituents and technological functional properties of acerola (Malpighia emarginata DC.) waste flour

et al. 2013

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“…Phytate levels in ASF and ABF are within the range reported for groups of cereals and legumes, which varies from 0.19 g to 1.37 g 100 g -1 (JOUNG et al, 2004).…”

Section: Resultssupporting

confidence: 72%

Chemical constituents and technological functional properties of acerola (Malpighia emarginata DC.) waste flour

et al. 2013

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“…According to the range of phytate contents reported by Brown et al (7) for the different sources of food and taking into account the food consumption among the participants of the present assay, the phytate:Zn ratio in our study ranged from 2 to 11, which would correspond to a high-moderate Zn bioavailability diet. The maximum value is comparable with the overall range of phytate:Zn molar ratio reported by Wuehler et al (33) for Western Europeans (10?6) and with the mean value of 10?1 observed in Koreans consuming varied diets but rich in vegetables, legumes, grains and cereals (34) . Based on the phytate:Zn ratio calculated in the present assay, a proportion of 30-45 % of dietary Zn available for absorption would be expected (35) .…”

Section: Zn Absorption and Bioavailabilitysupporting

confidence: 88%

Is the Mediterranean diet adequate to satisfy zinc requirements during adolescence?

Mesías

Seiquer

Navarro

2012

Public Health Nutr.

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Objective: To evaluate Zn utilization and status among a sample of Spanish boys consuming a diet based on Mediterranean patterns. Design: Dietary Zn balance was assessed by means of Zn intake in food and Zn output in faeces and urine as measured by flame atomic absorption spectrophotometry. In addition, biomarkers of Zn status were analysed. Setting: Province of Granada, Spain. Subjects: Twenty healthy male adolescents aged 11-14 years, selected based on medical questionnaire, physical examination and nutritional survey of food habits and lifestyle. Results: Mean Zn intake was 11?36 (SE 0?31) mg/d, 76% of the recommended value for Spanish adolescents. Zn absorption (2?53 (SE 0?55) mg/d) was close to the value of 3?0 mg/d required for the growth spurt. Zn status biomarkers and growth parameters were within the normal values for this age group. Conclusions: Although a diet based on Mediterranean patterns is associated with factors which can affect Zn absorption, such as high consumption of phytate, its consumption in adequate amounts allows Zn status to be maintained during adolescence. Due to the importance of Zn in preventing growth and behavioural disorders among adolescents, long-term intervention trials to investigate the suitability of the Mediterranean diet with respect to Zn requirements at this time of life are needed.

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“…These plant foods are high in phytic acid, which is a potent inhibitor of zinc absorption (Nävert et al, 1985). The median phytate:zinc ratio was 11.1, which is similar to that in the diets of Taiwanese (Wang et al, 1992) and Korean (Joung et al, 2004), but lower than those of American lacto-ovo vegetarians (Harland et al, 1988b), Middle Easterners (Davies, 1982) and Indian (Khokhar et al, 1994); and higher than those of a typical American hospital diet (Oberleas and Harland, 1981) and omnivorous diets. Our data suggest that phytate has little influence on zinc bioavailability of most residents in large cities of China.…”

Section: Discussionmentioning

confidence: 52%

“…Studies on phytate intakes can be found in USA (Harland and Peterson, 1978;Ellis et al, 1982), UK (Wise et al, 1987), Sweden (Torelm and Bruce, 1982), Italy (Carnovale et al, 1987), Napal (Ellis et al, 1987), Turkey (Ersöz et al, 1990), Taiwan (Wang et al, 1992), India (Khokhar et al, 1994) and Korea (Kwun and Kwon, 2000;Joung et al, 2004). In China, with a wide variation in the diets (Wang, 2005), data on phytate intake are lacking (Yang et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Phytate intake and molar ratios of phytate to zinc, iron and calcium in the diets of people in China

Jin

et al. 2006

Eur J Clin Nutr

109

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Objective: To assess the phytate intake and molar ratios of phytate to calcium, iron and zinc in the diets of people in China. Design: 2002 China Nationwide Nutrition and Health Survey is a cross-sectional nationwide representative survey on nutrition and health. The information on dietary intakes was collected using consecutive 3 days 24 h recall by trained interviewers. Subjects: The data of 68 962 residents aged 2-101 years old from 132 counties were analyzed. Results: The median daily dietary intake of phytate, calcium, iron and zinc were 1186, 338.1, 21.2 and 10.6 mg, respectively. Urban residents consumed less phytate (781 vs 1342 mg/day), more calcium (374.5 vs 324.1 mg/day) and comparable amounts of iron (21.1 vs 21.2 mg/day) and zinc (10.6 vs 10.6 mg/day) than their rural counterparts. A wide variation in phytate intake among residents from six areas was found, ranging from 648 to 1433 mg/day. The median molar ratios of phytate to calcium, iron, zinc and phytate Â calcium/zinc were 0.22, 4.88, 11.1 and 89.0, respectively, with a large variation between urban and rural areas. The phytate:zinc molar ratios ranged from 6.2 to 14.2, whereas the phytate Â calcium/zinc molar ratios were from 63.7 to 107.2. The proportion of subjects with ratios above the critical values of phytate to iron, phytate to calcium, phytate to zinc and phytate Â calcium/zinc were 95.4, 43.7, 23.1 and 8.7%, respectively. All the phytate/mineral ratios of rural residents were higher than that of their urban counterparts. Conclusions: The dietary phytate intake of people in China was higher than those in Western developed countries and lower than those in developing countries. Phytate may impair the bioavailability of iron, calcium and zinc in the diets of people in China.

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Bioavailable zinc intake of Korean adults in relation to the phytate content of Korean foods

Cited by 33 publications

References 14 publications

Chemical constituents and technological functional properties of acerola (Malpighia emarginata DC.) waste flour

Chemical constituents and technological functional properties of acerola (Malpighia emarginata DC.) waste flour

Is the Mediterranean diet adequate to satisfy zinc requirements during adolescence?

Phytate intake and molar ratios of phytate to zinc, iron and calcium in the diets of people in China

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