Dietary Zinc Intake Assessed by Dietary Survey and Zinc Analysis of Foods Consumed by Elementary Schoolchildren in Chungnam Province in Korea - Comparison between Remote Rural and Urban Areas -

일부 초등학생의 식이조사 및 섭취 식품의 아연 함량 분석에 의한 식이 아연 섭취량 평가 - 충남 벽지와 도시간의 비교 -

  • Lee, Eun-Mi (Department of Home Economics Education, Graduate School of Education, Kongju National University) ;
  • Kim, Sun-Hyo (Department of Foodservice Management and Nutrition, College of Natural Science, Kongju National University)
  • 이은미 (공주대학교 교육대학원 가정교육) ;
  • 김선효 (공주대학교 자연과학대학 외식상품학과)
  • Published : 2010.02.28


This study was performed to compare the dietary intake and food sources of zinc (Zn), using a database of Zn composition developed in this study, between elementary schoolchildren in a remote rural area (RA, n=58, $9.9{\pm}1.7\;yrs$) and those in an urban area (UA, n=60, $9.4{\pm}1.8\;yrs$) in Chungnam province in Korea. A dietary survey for three days by food record method was performed. All kinds of foods (n=273) consumed by subjects were collected by aliquot sampling method, and the Zn content of these foods were analyzed by wet technique. The results showed that the daily mean intakes of energy, calcium, iron, and vitamin C from diet in the RA were in the range of 49-88% of the Korean DRI (KDRI), while those in the UA were similar to or greater than the KDRI, except for calcium and iron. The daily mean intake of Zn from the RA diet was $7.0{\pm}0.5\;mg/d$ ($114.1{\pm}8.4%$ of the KDRI), and $16.0{\pm}1.0\;mg/d$ ($258.3{\pm}16.3%$ of the KDRI) in that of the UA (p<0.001). The percentage of dietary intake of Zn less than 2/3 of the KDRI was 19.0% in the RA, in comparison to 1.7% in the UA. Those in the RA consumed Zn from plant foods more often than did those in the UA (p<0.001). Beef rib stew was the food source with highest Zn amount for the total subjects, followed by beef rib meat, roasted; and beef soup w/seasoned red pepper sauce. These results showed that some children in the RA had poor Zn nutrition based upon low intakes and poor food sources of Zn, while overall, children in the UA had good Zn nutrition. Therefore, those in RAs should have their Zn nutrition improved through government policy and nutrition education.


zinc;food source of Zn;database of Zn;schoolchildren;remote rural area


  1. Bhan MK, Sommerfelt H, Strand T. 2001. Miconutrient deficiency in children. Br. J. Nutr., 85(Supp 2):S199-S203
  2. Choi IS, Lee KW, Oh SH. 1998. A study on the balance of iron and zinc in Korean children. Korean J. Community Nutrition, 3(1):12-20
  3. Han NS, Lee LH. 1994. Zinc and copper nutritional status of eight - year - old children in Seoul. Korean J. Nutr., 27(8):837-843
  4. Korean Nutrition Society. 2005. Dietary Reference Intakes for Koreans. Seoul
  5. MacDonald RS. 2000. The role of zinc in growth and cell proliferation. J. Nutr., 130(5S Suppl):1500S-1508S
  6. Ministry of Government of Legislation Homepage.
  7. Ruxton CH, Kirk TR, Belton NR, Holmes MA. 1996. Relationships between social class, nutrient intake and dietary patterns in Edinburgh schoolchildren. Int. J. Food Sci. Nutr., 47:341-349
  8. Yu KH. 2007. A study on the nutrient intakes and zinc nutritional status of preschool children in Ulsan. Korean J. Nutr., 40(4):385-394
  9. Korean Nutrition Society. 1995. Recommended Dietary Allowances for Koreans. 6th ed. Seoul
  10. Lonnerdal B. 2000. Dietary factors influencing zinc absorption. J. Nutr., 130(5S Suppl):1378S-1383S
  11. Choi YS, Cho SH, Yoon JS, Seo JS. 2007. Nutritional Assessment. Hyungseul Press. Seoul. pp 46-56
  12. Hotz C, Lowe NM, Araya M, Brown KH. 2003. Assessment of the trace element status of individuals and populations: the example of zinc and copper. J. Nutr., 133(5 Suppl 1):1563S-1568S
  13. USDA Homepage.
  14. Son SM, Sung SI. 1999. Zinc and copper intake with food analysis and levels of zinc and copper in serum, hair and urine of female college students. Korean J. Nutr., 32:705-712
  15. Kim MK, Ki MR, Bang KN, Kim KR, Choi BY, Kwon YJ, Lee SS, Kim C, Kang YJ. 1998. The effect of parental socioeconomic status on the nutrient intake of urban and rural adolescents. Korean J. Community Nutrition, 3:542-555
  16. Klotz LO, Kroncke KD, Buchczyk DP, Sies H. 2003. Role of copper, zinc, selenium and tellurium in the cellular defense against oxidative and nitrosative stress. 2003. J. Nutr., 133(5 Suppl 1): 448S-1451S
  17. Park JS, Chun JH. 1993. Dietary zinc analysis and changes of zinc nutriture with zinc supplementation in Korean adults. Korean J. Nutr., 26:1110-1117
  18. Lee JY, Paik HY, Joung HJ. 1998. Supplementation of zinc nutrient database and evaluation of zinc intake of Korean adults living in rural area. Korean J. Nutr., 31:1324-1337
  19. Bhatnagar S, Natchu UC. 2004. Zinc in child health and disease. Indian J. Pediatr., 71(11):991-995
  20. Kim SH, Kim JY, Keen CL. 2005. Comparison of dietary patterns and nutrient intakes of elementary schoolchildren living in remote rural and urban areas in Korea: their potential impact on school performance. Nutr. Res., 25:349-363
  21. Lee YS, Lim HS, Ahn HS, Chang NS. 2004. Nutrition through the Life Cycle. Kyomunsa. Seoul. pp 187-215
  22. The Korean Nutrition Information Center at The Korean Nutrition Society. 1998. Food Values of Portions Commonly Used. Jungang Munhwa Publisher. Seoul
  23. Korea Centers for Disease Control and Prevention, Korea Health Industry Development Institute. 2007. In-Depth Analysis on the 3rd (2005) Korea Health and Nutrition Examination Survey-Nutrition Survey. Seoul
  24. Korean Nutrition Society. 2000. Recommended Dietary Allowances for Koreans. 7th ed. Seoul
  25. Lim HJ. 2003. A study on the zinc intake and urinary excretion of preschool children in Busan. Korean J. Nutr., 36(9):950-959
  26. Soekarjo DD, de Pee S, Bloem MW, Tjiong R, Yip R, Schreurs WH, Muhilal. 2001. Socio-economic status and puberty are the main factors determining anaemia in adolescent girls and boys in East Java, Indonesia. Eur. J. Clin. Nutr., 55(11):932-939
  27. Guenther PM, Jensen HH, Batres-Marquez SP, Chen CF. 2005. Sociodemographic, knowledge, and attitudinal factors related to meat consumption in the United States. J. Am. Diet. Assoc., 105(8):1266-1274
  28. Bhutta ZA, Nizami SQ, Isani Z. Zinc supplementation in malnourished children with persistent diarrhea in Pakistan. 1999. Pediatrics, 103(4):e42