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Comparative Evaluation of Dietary Intakes of Calcium, Phosphorus, Iron, and Zinc in Rural, Coastal, and Urban District

농촌, 어촌, 도시 지역별 칼슘, 인, 철, 아연의 섭취상태 비교평가

  • Choi, Mi-Kyeong (Dept. of Human Nutrition & Food Science, Chungwoon University) ;
  • Kim, Hyun-Sook (Dept. of Preventive Medicine, College of Medicine, Chung-Ang University) ;
  • Lee, Won-Young (Dept. of Preventive Medicine, College of Medicine, Chung-Ang University) ;
  • Lee, Hyomin (National Institute of Toxicological Research) ;
  • Ze, Keum-Ryon (National Institute of Toxicological Research) ;
  • Park, Jung-Duck (Dept. of Preventive Medicine, College of Medicine, Chung-Ang University)
  • 최미경 (청운대학교 식품영양학과) ;
  • 김현숙 (중앙대학교 의과대학 예방의학교실) ;
  • 이원영 (중앙대학교 의과대학 예방의학교실) ;
  • 이효민 (국립독성연구원) ;
  • 제금련 (국립독성연구원) ;
  • 박정덕 (중앙대학교 의과대학 예방의학교실)
  • Published : 2005.06.01

Abstract

The purpose of this study was to compare the intake status of calcium, phosphorus, iron, and zinc of Korean adults residing in different regions. Subjects were recruited and divided into three groups according to the districts where they lived, which included rural (n=137), coastal (n=100), and urban district (n=117). Subjects were interviewed using a general questionnaire and 24-hour recall method for dietary intake. The average age of the subjects were 58.1 years for rural district, 57.7 years for coastal district, and 48.6 years for urban district. There was no significance in total food intake by regions. The food intakes from cereals, mushrooms, vegetables of rural district, that from fishes of coastal district, and those from sugars, milks, oils of urban area were the highest among three districts. The calcium, phosphorus, iron, and zinc intakes were $60.1\%,\;123.9\%,\;95.2\%,\;and\;73.1\%$ of RDAs, respectively. The calcium intakes as percentage of RDA in rural and coastal district were significantly (p<0.01) lower than that in urban district. A larger number of subjects from coastal or urban district ate under $75\%$ of zinc RDA compared to those from rural village. Major sources of dietary calcium in total subjects were anchovy, kimchi, milk, soybean curd, rice, ice cream, sea mustard, yogurt, loach, and welsh onion. Rice supplied $15.5\%$ for phosphorus, $22.1\%$ for iron, and $35.9\%$ for zinc of total intake. Except for rice, major sources of dietary zinc were pork, beef, small red bean, dog meat, chicken, jacopever, soybean curd, glutinous millet, and kimchi. In conclusion, the food and mineral intakes of adults differed according to the regions in which they resided. The food and nutrient intakes of coastal district were not satisfactory, and calcium and zinc intakes of three regions did not meet RDAs. Therefore, it is required unique and discriminatory nutritional education with each region for increasing intakes of calcium and zinc.

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