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A Study on the Nutrient Intakes and Zinc Nutritional Status of Preschool Children in Ulsan
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울산지역 유치원 어린이의 〈한국인영양섭취기준〉에 의한 영양소섭취 실태 및 아연영양 상태에 관한 연구

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Type
Academic journal
Author
Yu Kyeong Hee (울산과학대학)
Journal
The Korean Nutrition Society The Korean Journal of Nutrition Vol.40 No.4 KCI Accredited Journals
Published
2007.6
Pages
385 - 394 (10page)

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A Study on the Nutrient Intakes and Zinc Nutritional Status of Preschool Children in Ulsan
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The purpose of this study was to determine the zinc status of preschool children in Ulsan. The study was conducted in 95 children aged 3 to 6 years by investigating the anthropometric indices and assessing the biochemical analysis. The blood was analysed to assess serum zinc and alkaline phosphatase. And a questionnaire for dietary intakes using 24-hr recall method were performed by mothers of 95 subjects. The dietary intakes of children were analysed to determine the prevalence of inadequate and excessive intakes of zinc with Dietary Reference Intakes for Koreans (KDRls). WHL (Weight-Length Index) and Kaup index were used to define obesity. The overall prevalence of overweight and obese subjects were 14.7% and 6.3% by WHL, were 15.8% and 13.7% by Kaup index. The mean intakes of zinc by children aged 3~5y and 6y were 5.5 ± 1.4 ㎎/d (75.7% RDA) and 6.7 ± 2.0 ㎎/d, respectively, that was the level exceeding the estimated average requirement (EAR) and the recommended intake (RI) of Korean Dietary Reference Intakes. Less than 1.3% and 7.9% of children had usual zinc intakes below EAR and RI of KDRIs, respectively. The percentages of children with intakes exceeding the tolerable upper intake level (UL) were 2.6%. The zinc nutritional status by biological assay was found that mean serum zinc and alkaline phosphatase (ALP) of total subjects were 64.0 ± 8.4 ㎍/㎗ and 72.8 ± 14.9 U/L, there was not a significant difference between boys and girls. The range of serum zinc level was 45~89 ㎍/㎗ and children with a low serum zinc concentration by several cut-off points were 18.9~55.8%, especially. Serum zinc level was positively correlated to the intakes of calorie, calcium, fiber, iron, zinc, zinc/㎏ and height (p＜0.001). Serum ALP was positively correlated height, weight and WLI. The zinc intake of children also showed a positive correlation with height and weight. These results indicate that there were significant correlations between the zinc status and growth of preschool children. Preschool children in Ulsan have dietary zinc intakes that exceed the new DRIs. The present level of intake does not seem to pose a health problem, but if zinc intakes with fortified foods and supplements were considered, the amount of zinc consumed by children may become excessive. (Korean J Nutr 2007; 40(4): 385~394)
#preschool children #zinc intakes of KDRI #serum zinc #serum alkaline phosphatase #anthropometric measurement

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