Daily Water Consumption and its Contribution to Calcium Intake in Korean Adults

한국 일부 성인의 수분 섭취와 수분을 통한 칼슘 섭취량 평가

  • Park, Eun-Sun (Division of Food Science, Kongju National University) ;
  • Lee, Yeon-Kyung (Department of Food Science and Nutrition, Kyungpook National University) ;
  • Kim, Mi-Hyun (Division of Food Science, Kongju National University) ;
  • Choi, Mi-Kyeong (Division of Food Science, Kongju National University)
  • 박은선 (공주대학교 식품과학부) ;
  • 이연경 (경북대학교 식품영양학과) ;
  • 김미현 (공주대학교 식품과학부) ;
  • 최미경 (공주대학교 식품과학부)
  • Received : 2018.12.06
  • Accepted : 2019.02.08
  • Published : 2019.02.28


Objectives: Although water is essential for life and can supply essential minerals, studies that evaluate calcium intake through drinking water are limited. The aim of this study was to assess calcium contents of natural mineral water (NMW) and its possible contribution to calcium intake in healthy adults. Methods: This study examined water consumption in 640 Korean adults with self-selected diet, analyzed the calcium content of 10 different brands of bottled NMWs sold in Korea, and assessed the amount of calcium intake from drinking water and its daily contribution to the recommended nutrient intake (RNI) of calcium. Results: Mean calcium content in 10 bottled NMWs was 20.9 mg/l. Daily water intakes from food composition database and calculated using energy intake based on 0.53 ml/kcal were 957.2 ml and 1109.8 ml for men and 848.3 ml and 951.6 ml for women, respectively, with a significant difference by gender (p<0.001). Daily drinking water intake was significantly higher among men than women (1203.9 ml vs. 1004.3 ml, respectively, p<0.001). Daily calcium intakes from foods were 564.0 mg for men and 534.2 mg for women. Daily possible calcium intakes from drinking bottled water were 25.2 mg for men and 21.0 mg for women (p<0.001). The contribution of daily calcium intake from drinking bottled water to RNI of calcium was 3.3% for men and 2.9% for women without significant difference. Conclusions: One half of the daily total water intake was consumed as drinking water, and possible calcium intake through drinking water was about 3% of RNI.


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