• Title/Summary/Keyword: Iron overintake

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Effect of Iron Intakes on Macromineral Utilization in Rats (철분 공급수준이 흰쥐의 다량무기질 이용에 미치는 영향)

  • 전예숙
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.6
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    • pp.1273-1278
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    • 1998
  • The purpose of this study was to investigate effect of iron intakes on utilization of macrominerals (Ca, Mg, Na, K) in rats fed adequate, 2 fold, 4 fold iron for 12 weeks. There were no differences in feed intake, body weight gain, serum and liver levels of macrominerals across iron groups. Ca level in kidney of 4 fold iron group was significantly higher than those in other groups. Excretions of Mg through feces and Ca, Mg, Na, and K through urine were significantly increased with increment of iron intake. In the case of macromineral balances, daily retentions of Mg, Na, and K in adequate iron group were higher than those in 2 /4 fold iron groups. However there was no difference in Ca retention across iron groups. Therefore, it should be considered interaction with macromineral in iron supplementation.

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Effects of Frequent Eating-out and Breakfast Skipping on Body Mass Index and Nutrients Intake of Working Male Adults: Analysis of 2001 Korea National Health and Nutrition Survey Data (직업 남성의 잦은 외식과 아침결식이 체질량지수 및 영양소 섭취에 미치는 영향 - 2001년 국민건강영양조사자료 분석)

  • Lee, Joung-Won
    • Korean Journal of Community Nutrition
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    • v.14 no.6
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    • pp.789-797
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    • 2009
  • In order to investigate the effects of frequent eating-out and breakfast skipping of working men on body mass index and nutrients intake status, working male adults aged 20 or over were selected (n = 1883) from the data of 2001 Korea national health and nutrition survey. The subjects were divided into 4 groups according to the eating-out frequency(high: once or more daily, low: less than once daily) and breakfast eating or not. Four groups were high eating-out with breakfast eating (n = 609), high eating-out with breakfast skipping (n = 192), low eating-out with breakfast eating (n = 877), and low eating-out with breakfast skipping (n = 205). High eating-out group showed higher body mass index (BMI) than low eating-out group, but the difference of BMI was disappeared when adjusted with age, residence region and family income. However high eating-out group in case of breakfast eating, compared with the low eating-out, showed higher intakes or densities of energy, fat, fat-energy% and higher ratio of energy-fat overintake, and also showed higher mean nutritional adequacy ratio and lower ratio of nutrients intake deficiency. Calcium, iron, vitamin A and C intakes were not affected by eating-out frequency, but were lowered by breakfast skipping. Breakfast skipping also decreased intake frequency of unprocessed cereals and increased those of ramyon and carbonated and alcoholic beverages. From the results frequent eating-out with breakfast eating caused increased intakes of energy and fat, but did not cause BMI increase. Breakfast skipping, but not eating-out, had negative influences on mineral and vitamin intakes. Accordingly good eating-out as well as breakfast eating should be exceedingly emphasized at nutrition education for the working males.