Survey on Sodium and Potassium Content of School Meals as well as Sodium and Potassium Intake by Students in the Daejeon and Chungcheong Area

대전.충청 지역 초.중학교 급식의 나트륨, 칼륨 함량 및 섭취량 조사

  • Lee, Eun-Mi (Hazardous Substance Analysis Division, Daejeon Regional Food and Drug Administration) ;
  • Park, You-Gyoung (Hazardous Substance Analysis Division, Daejeon Regional Food and Drug Administration) ;
  • Jung, Woo-Young (Hazardous Substance Analysis Division, Daejeon Regional Food and Drug Administration) ;
  • Kim, Mi-Ra (Hazardous Substance Analysis Division, Daejeon Regional Food and Drug Administration) ;
  • Seo, Eun-Chae (Hazardous Substance Analysis Division, Seoul Regional Food and Drug Administration) ;
  • Jung, Rae-Seok (Hazardous Substance Analysis Division, Daejeon Regional Food and Drug Administration) ;
  • Na, Mi-Ae (Hazardous Substance Analysis Division, Daejeon Regional Food and Drug Administration) ;
  • Lee, Jin-Ha (Hazardous Substance Analysis Division, Gwangju Regional Food and Drug Administration) ;
  • Heo, Ok-Soon (Hazardous Substance Analysis Division, Daejeon Regional Food and Drug Administration)
  • 이은미 (대전지방식품의약품안전청 유해물질분석과) ;
  • 박유경 (대전지방식품의약품안전청 유해물질분석과) ;
  • 정우영 (대전지방식품의약품안전청 유해물질분석과) ;
  • 김미라 (대전지방식품의약품안전청 유해물질분석과) ;
  • 서은채 (서울지방식품의약품안전청 유해물질분석과) ;
  • 정래석 (대전지방식품의약품안전청 유해물질분석과) ;
  • 나미애 (대전지방식품의약품안전청 유해물질분석과) ;
  • 이진하 (광주지방식품의약품안전청 유해물질분석과) ;
  • 허옥순 (대전지방식품의약품안전청 유해물질분석과)
  • Received : 2010.06.24
  • Accepted : 2010.12.06
  • Published : 2010.12.31

Abstract

This study was conducted as a nationwide project in order to obtain data on the content and intake of sodium in school meals. For this purpose, we selected two elementary and two middle schools in Daejeon as well as four elementary schools in the Chungcheong area. We measured the sodium and potassium contents of 842 dishes as well as their intake levels over 154 days. Sodium content was analyzed using an AAS (Atomic Absorption Spectrometer). The average meal intakes of second and fifth grade elementary school students were 244 g/meal and 304 g/meal, respectively. The meal intake of middle school students was 401 g/meal. Boys tended to eat slightly more than did girls, and students tended to eat more in the spring than in the summer. The average sodium intake per meal was 642 mg (570 mg by elementary school students, 1068 mg by middle school students), which was 32.1% of the UL (Tolerable Upper Intake Level, 2,000 mg per day) according to the KDRIs (Dietary Reference Intakes for Koreans). The sodium intake per meal was not significantly differ between boys and girls or between spring and summer (p>0.05). This study provides fundamental data that can be used to establishment a nutrition policy concerning the adequate content of sodium in school meals.

Keywords

References

  1. 교육과학기술부 (학생건강안전과) (2010) 학교 보건.급식 기본 방향.
  2. 보건복지가족부 (2008) 국민건강영양조사 제4기 2차년도.
  3. 한국영양학회 (2000) Appendix. Classification of dishes by foods and cooking methods. Korean J Nutr 33: 216-229.
  4. 한국영양학회 (2005) 영양섭취기준.
  5. Antonios TF, MacGreger GA (1995) Deleterious effect of salt intake other than effects on blood pressure. Clin EVP Pharmacol Physiol 22: 180-184. https://doi.org/10.1111/j.1440-1681.1995.tb01976.x
  6. Blaustein MP, Hamlyn JM (1983) Role of nutrientic factor in essential hypertension: an hypothesis. Ann Int Med 98: 785-791. https://doi.org/10.7326/0003-4819-98-5-785
  7. Chang HS, Kim MJ (2006) The study on dietary behaviors of elementary school student in Chungnam area according to the school food service type, gender and grade. Korean J Community Nutr 11: 608-617.
  8. Cho HS (1998) A study on the actual condition for portion control of meal served by elementary school foodservice operation. Korean J Food & Nutr 11: 54-60.
  9. Cho MH, Kim SJ, Lee KH (2008) A study on preference salinity and temperature of soups served in the institutional foodservice establishment. J East Asian Soc Dietary Life 18: 601-607.
  10. Dahl LK, Leitt G, Heine M (1972) Influence of dietary potassium and sodium/potassium molar ratios on the development of salt hypertension. J Exp Med 136: 318. https://doi.org/10.1084/jem.136.2.318
  11. Goto A, Tobian L, Iwai J (1981) Potassium feeding reduces hyperactive central nervous system pressor responses in salt-sensitive rats. Hypertension 3: 128-134. https://doi.org/10.1161/01.HYP.3.3_Pt_2.I128
  12. Hwang G, Jung L, Ji H (2001) The eating behaviors, nutrient intakes and hematological status of primary school children in Gwangju. Korean J Food & Nutr 14: 1-9.
  13. Imura O, Kijima T, Kikuchi K (1981) Studies on the hypertensive effect of high potassium intake in patients with essential hypertension. Clin Sci 61: 77-80. https://doi.org/10.1042/cs061077s
  14. Kempner W (1948) Treatment of hypertensive vascular disease with rice diet. Am J Med 4: 545-577. https://doi.org/10.1016/0002-9343(48)90441-0
  15. Kim EY, Park HH (2004) A study on eating habit of elementary school students in higher grade. Korean J Food & Nutr 17: 393-404.
  16. Kim SH, Kim NY, Lee KH (2007) A comparison of students satisfaction with school foodservice program by foodservice operation type in middle and high schools students in the Geumsan-Gun area. J East Asian Soc Dietary Life 17: 597-606.
  17. Koo NS, Park CI (1998) Food preference of elementary school children under meal service in Taejon. Korean J Community Nutr 3: 440-453.
  18. Lee HS, Jang MH (2005) Survey of students satisfaction with school food-service programs in Gangwon province. Korean J Food & Nutr 18: 175-191.
  19. McCarron DA, Reusser ME (2001) Are low intakes of calcium and potassium important causes of cardiovascular disease? Am J Hypertens 14(6 Pt 2): 206-212. https://doi.org/10.1016/S0895-7061(00)01253-X
  20. Micah L (2009) Biobehavior of the human love of salt. Neuroscience and Biobehavioral Rev 33: 1-17. https://doi.org/10.1016/j.neubiorev.2008.07.007
  21. Park SI, Bae S (2001) A study on children's satisfaction with food service in elementary schools in Seoul area. Korean J Food & Nutr 14: 532-542.
  22. Park YS, Son SM, Lim WJ, Chung YS (2008) Comparison of dietary behaviors related to sodium intake by gender and age. Korean J Community Nutr 13: 1-12.
  23. Shin EK, Lee HJ, Jun SY, Park EJ, Jung YY, Ahn MY, Lee YK (2008) Development and evaluation of nutrition education program for sodium reduction in foodservice operations. Korean J Community Nutr 13: 216-227.
  24. Son SM, Huh GY, Lee HS (2005) Development and evaluation of validity of dish frequency questionnaire (DFQ) and short DFQ using Na index for estimation of habitual sodium intake. Korean J Community Nutr 10: 677-692.
  25. Son SM, Park YS, Lim HJ, Kim SB, Jeong YS (2007) Sodium intakes of Korean adults with 24-hour urine analysis and dish frequency questionnaire and comparison of sodium intakes according to the regional area and dish group. Korean J Community Nutr 12: 545-558.
  26. Tannen RL (1983) Effects of potassium on blood pressure control. Ann Int Med 98: 773-780. https://doi.org/10.7326/0003-4819-98-5-773
  27. Tsugane S (2005) Salt, salted food intake, and risk of gastric cancer: Epidemiologic evidence. Cancer Sci 96: 1-6. https://doi.org/10.1111/j.1349-7006.2005.00006.x
  28. Utsugi MT, Ohkubo T, Kikuya M, Kurimoto A, Sato RI, Suzuki K, Metoki H, Hara A, Tsubono Y, Imai Y (2008) Fruit and vegetable consumption and the risk of hypertension determined by self measurement of blood pressure at home: The Ohasama study. Hypertens Res 31: 1435-1443. https://doi.org/10.1291/hypres.31.1435