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Environmental Health and Preventive Medicine

Published in:

01-11-2016 | Regular Article

Iodine intake by adult residents of a farming area in Iwate Prefecture, Japan, and the accuracy of estimated iodine intake calculated using the Standard Tables of Food Composition in Japan

Authors: Haruo Nakatsuka, Keiko Chiba, Takao Watanabe, Hideyuki Sawatari, Takako Seki

Published in: Environmental Health and Preventive Medicine | Issue 6/2016

Abstract

Objectives

Iodine intake by adults in farming districts in Northeastern Japan was evaluated by two methods: (1) government-approved food composition tables based calculation and (2) instrumental measurement. The correlation between these two values and a regression model for the calibration of calculated values was presented.

Methods

Iodine intake was calculated, using the values in the Japan Standard Tables of Food Composition (FCT), through the analysis of duplicate samples of complete 24-h food consumption for 90 adult subjects. In cases where the value for iodine content was not available in the FCT, it was assumed to be zero for that food item (calculated values). Iodine content was also measured by ICP-MS (measured values).

Results

Calculated and measured values rendered geometric means (GM) of 336 and 279 μg/day, respectively. There was no statistically significant (p > 0.05) difference between calculated and measured values. The correlation coefficient was 0.646 (p < 0.05).

Discussion

With this high correlation coefficient, a simple regression line can be applied to estimate measured value from calculated value. A survey of the literature suggests that the values in this study were similar to values that have been reported to date for Japan, and higher than those for other countries in Asia.

Conclusions

Iodine intake of Japanese adults was 336 μg/day (GM, calculated) and 279 μg/day (GM, measured). Both values correlated so well, with a correlation coefficient of 0.646, that a regression model (Y = 130.8 + 1.9479X, where X and Y are measured and calculated values, respectively) could be used to calibrate calculated values.

Zimmermann M. Iodine and iodine deficiency disorders. In: Erdman Jr JW, MacDonald IA, Zeisel SH, editors. Present knowledge in nutrition. 10th ed. Ames: Wiley-Blackwell; 2012. p. 554–67.CrossRef

Patrick L. Iodine; deficiency and therapeutic considerations. Altern Med Rev. 2008;13:116–27.PubMed

Ministry of Health, Labour and Welfare, Japan. Dietary reference intakes for Japanese. Tokyo: Daiichi Shuppan Publishers; 2010. p. 237–41 (Appendix p. 49, in Japanese).

Ministry of Education, Culture, Sports, Science and Technology, Japan. Standard Tables of Food Composition in Japan- 2010. Official Gazette Corporation of Japan, Tokyo, 2010. (in Japanese with English translation).

Ministry of Education, Culture, Sports, Science and Technology, Japan. Standard Tables of Food Composition in Japan 2015 (7th edition). http://www.mext.go.jp/a_menu/syokuhinseibun/1365297.htm. Accessed 30 Jan 2016. (in Japanese with English translation).

Watanabe T, Suzuki A, Yamashita T. Application of standard tables of food composition 2010 To get iodine appropriately from diets. J Integr Study Diet Habits. 2011;22:121–8 (in Japanese with English abstract).CrossRef

Tsukada N, Urakawa Y, Yokoyama J, Tanaka H, Igarashi M. Dietary iodine intake in Japanese university students; data analysis based on the standard tables of food consumption in Japan (2010 version). J Jpn Soc Clin Nutr. 2013;35:30–8 (in Japanese with English abstract).

Matsumoto K, Yoshida M, Sawamura H, Watanabe T. Examination of the intake of micronutrients newly listed Standard Tables of Food Composition in Japan 2010 iodine and selenium. Trace Nutr Res. 2013;30:207–30 (in Japanese with English abstract).

Nakatsuka H, Chiba K, Watanabe T, Shimbo S, Sawatari H, Izumi K, et al. High iodine intake by preschool children in Miyagi Prefecture Japan. Envron Health Prev Med. 2014;19:330–8.CrossRef

10.

Acheston KJ, Campbell IT, Edholm OG, Miller DS, Stock MJ. The measurement of food and energy intake in man-An evaluation of some techniques. Am J Clin Nutr. 1980;33:1147–54.

11.

Ministry of Health, Labour and Welfare, Japan. dietary reference intakes for Japanese, 2015, Daiichi Shuppan Publishers, Tokyo, 2015 pp. 306–10 pp.339 p. 49. (in Japanese).

12.

Ministry of Health, Labour and Welfare, Japan. Outline of the National Health and Nutrition Survey Japan. 2014. p. 31. http://www.mhlw.jp/bunya/kenkou/eiyou/h25-houkoku.htm. Accessed 8 Feb 2016 (in Japanese).

13.

Zava TT, Zave DT. Assessment of Japanese iodine intake based on seaweed consumption in Japan: a literature-based analysis. Thyroid Res. 2011. doi:10.1186/1756-6614-4-14.PubMedPubMedCentral

14.

Katagiri R, Asakura K, Sasaki S, Hirota N, Notsu N, Miura A, et al. Estimation of habitual iodine intake in Japanese adults using 16-day diet records over four seasons with a newly developed food composition database for iodine. Br J Nutr. 2015;114:624–34.CrossRefPubMed

15.

Imaeda N, Kuriki K, Fujiwara N, Goto C, Tokudome Y, Tokudome S. Usual dietary intakes of selected trace elements (Zn, Cu, Mn, I, Se, Cr, and Mo) and biotin revealed by a survey of four-season 7-consecutive day weighed dietary records in middle-aged Japanese dietitians. J Nutr Vitaminol. 2013;59:281–8.CrossRef

16.

Fuse Y, Yamaguchi S, Yamaguchi M, Okayasu K, Uematsu Y, Ohashi T, et al. Development and validation of food frequency questionnaire for assessing iodine intake. J Jpn Soc Clin Nutr. 2011;32:147–58.

17.

Fuse Y, Tanaka T, Arata N, Harada S, Ogawa H, Fuse Y, et al. Resources and intake of iodine in Japanese adults assessed by a newly revised food frequency questionnaire. J Jpn Soc Clin Nutr. 2012;34:18–28.

18.

Iyengar GV, Kawamura H, Dang HS, Parr RM, Wang J, Akhtner P, et al. Dietary intakes of seven elements of importance in radiological protection by Asian population, comparison with ICRP data. Health Phys. 2004;86:557–64.CrossRefPubMed

19.

Zau S, Wu F, Guo C, Song J, Huang C, Zhu Z, et al. Iodine nutrition and the prevalence of thyroid disease after salt iodization: a cross-sectional survey in Shanghai, a coastal area in China. PLoS One. 2012;7:e40718. doi:10.1371/journal.pone.0040418.CrossRef

20.

Nagataki S. The average dietary iodine intake from the ingestion of seaweeds is 1.2 mg/day in Japan. Thyroid. 2008;18:667–8.CrossRefPubMed

Title: Iodine intake by adult residents of a farming area in Iwate Prefecture, Japan, and the accuracy of estimated iodine intake calculated using the Standard Tables of Food Composition in Japan
Authors: Haruo Nakatsuka
Keiko Chiba
Takao Watanabe
Hideyuki Sawatari
Takako Seki
Publication date: 01-11-2016
Publisher: Springer Japan
Published in: Environmental Health and Preventive Medicine / Issue 6/2016
Print ISSN: 1342-078X
Electronic ISSN: 1347-4715
DOI: https://doi.org/10.1007/s12199-016-0569-4

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Iodine intake by adult residents of a farming area in Iwate Prefecture, Japan, and the accuracy of estimated iodine intake calculated using the Standard Tables of Food Composition in Japan

Abstract

Objectives

Methods

Results

Discussion

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objectives

Methods

Results

Discussion

Conclusions

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