Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Report of the Working Group for Dietary Salt Reduction of the Japanese Society of Hypertension: (2) Assessment of Salt Intake in the Management of Hypertension

A Corrigendum to this article was published on 05 September 2011

Abstract

Restriction of dietary salt is widely recommended in the management of hypertension, but assessment of individual salt intake has drawn little attention. The understanding of salt intake is important as a guide for optimizing salt-restriction strategies. However, precise evaluation of salt intake is difficult. More reliable methods are more difficult to perform, whereas easier methods are less reliable. Thus, the method to assess salt intake should be determined as the situation demands. The Working Group for Dietary Salt Reduction of the Japanese Society of Hypertension recommends the assessment of individual salt intake using one of the following methods in the management of hypertension. 1) The measurement of the sodium (Na) excretion from 24-h urine sampling or nutritionist's analysis of the dietary contents, which are reliable but difficult to perform, are suitable for facilities specializing in the treatment of hypertension. 2) Estimation of the Na excretion from the Na/creatinine (Cr) ratio in spot urine is less reliable but practical and is suitable for general medical facilities. 3) Estimation using an electronic salt sensor equipped with a calculation formula is also less reliable but is simple enough that patients can use it themselves. The patients are considered to be compliant with the salt-restriction regimen if salt intake measured by whichever method is less than 6 g (100 mmol)/day.

References

  1. Japanese Society of Hypertension : Japanese Society of Hypertension Guidelines for the Management of Hypertension (JSH 2004). Hypertens Res 2006; 29 ( Suppl): S1–S105.

  2. Lifestyle-Related Disease Control Section, General Affairs Division, Health Bureau, Ministry of Health, Labor and Welfare : An Outline of the Results of the 2004 National Health and Nutrition Survey (in Japanese). http://www.mhlw.go.jp/houdou/2006/05/h0508-1a.html

  3. Guidelines Subcommittee : 1999 World Health Organization–International Society of Hypertension Guidelines for the management of hypertension. J Hypertens 1999; 17: 151–183.

  4. Kawano Y, Tsuchihashi T, Matsuura H, Ando K, Fujita T, Ueshima H : Assessment of salt intake in the management of hypertension, in Report of the Working Group for Dietary Salt Reduction of the Japanese Society of Hypertension. Tokyo, Japanese Society of Hypertension, 2006, pp 13–23 ( in Japanese).

    Google Scholar 

  5. Liu K, Cooper R, McKeever J, et al: Assessment of the association between habitual salt intake and high blood pressure: methodological problems. Am J Epidemiol 1979; 110: 219–226.

    CAS  PubMed  Article  Google Scholar 

  6. Saito T, Shimizu A, Hokimoto S, et al: Salt intake of the Japanese. J Kyoto Women's Univ Food Sci Soc 1995; 50: 20–27 ( in Japanese).

    Google Scholar 

  7. Yoshita K, Miura K, Okayama A, et al: A validation study on food composition tables for the international cooperative INTERMAP study in Japan. Environ Health Prev Med 2005; 10: 150–156.

    PubMed  PubMed Central  Article  Google Scholar 

  8. Takagi H, Kaneko S, Saeki K, et al: Estimation of salt intake using a questionnaire. J Health Human Ecol 1993; 59: 113–122 ( in Japanese).

    Article  Google Scholar 

  9. Fukumoto T, Ueno M, Haga K, et al: Estimation of salt intake at home. Lecture Summaries at the 55th Conference of the Japanese Society of Nutrition and Food Science. Tokyo, Japanese Society of Nutrition and Food Science, 2001, p 212 ( in Japanese).

    Google Scholar 

  10. Intersalt Cooperative Research Group: Intersalt: an international study of electrolyte excretion and blood pressure. Results for 24 hour urinary sodium and potassium excretion. BMJ 1998; 297: 319–328.

  11. Yamori Y, Nara Y, Kihara M, et al: Simple method for sampling consecutive 24-hour urine for epidemiological and clinical studies. Clin Exp Hypertens 1984; 6: 1161–1167.

    CAS  Google Scholar 

  12. Luft FC, Fineberg NS, Sloan RS : Estimating dietary sodium intake in individuals receiving a randomly fluctuating intake. Hypertension 1982; 4: 805–808.

    CAS  PubMed  Article  Google Scholar 

  13. Sakai H, Ikeda T, Saito H : Effects of seasons and perspiration on Na and protein intake and their daily urinary excretion. Jpn J Public Health 1989; 36: 309–315 ( in Japanese).

    Google Scholar 

  14. Liu K, Dyer AR, Cooper RS, et al: Can overnight urine replace 24-hour urine collection to assess salt intake? Hypertension 1979; 1: 529–536.

    CAS  PubMed  Article  Google Scholar 

  15. Tsai TJ, Chen YM, Hsieh BS, et al: Comparison between spot urine and overnight urine in the estimation of 24-hour excretion of urine protein, sodium and kallikrein. J Formos Med Assoc 1991; 90: 755–759.

    CAS  PubMed  Google Scholar 

  16. Kawano Y, Kawasaki T, Kawazoe N, et al: Circadian variations of urinary dopamine, norepinephrine, epinephrine and sodium in normotensive and hypertensive subjects. Nephron 1990; 55: 277–282.

    CAS  PubMed  Article  Google Scholar 

  17. Staessen J, Broughton PMG, Fletcher AE, et al: The assessment of the relationship between blood pressure and sodium intake using whole-day, daytime and overnight urine collections. J Hypertens 1991; 9: 1035–1040.

    CAS  PubMed  Article  Google Scholar 

  18. Kamata K, Tochikubo O : Estimation of 24-h urinary sodium excretion using lean body mass and overnight urine collected by a pipe-sampling method. J Hypertens 2002; 20: 2191–2197.

    CAS  PubMed  Article  Google Scholar 

  19. Kawasaki T, Itoh K, Uezono K, et al: A simple method for estimating 24 h urinary sodium and potassium excretion from second morning voiding urine specimen in adults. Clin Exp Pharmacol Physiol 1993; 20: 7–14.

    CAS  PubMed  Article  Google Scholar 

  20. Milne FJ, Gear JSS, Laidley L, et al: Spot urinary electrolyte concentrations and 24 hour excretion. Lancet 1980; 2: 1135.

    CAS  PubMed  Article  Google Scholar 

  21. Tanaka T, Okamura T, Miura K, et al: A simple method to estimate populational 24-h urinary sodium and potassium excretion using a casual urine specimen. J Hum Hypertens 2002; 16: 97–103.

    CAS  PubMed  Article  Google Scholar 

  22. Luft FC, Aronoff GR, Sloan RS, et al: The efficacy of quantitative and qualitative chloride titrators in the estimation of human salt intake. Klin Wochenschr 1985; 63: 62–67.

    CAS  PubMed  Article  Google Scholar 

  23. Tabata S, Onishi T, Nakamura H, et al: Evaluation of the measurement of the urinary salt concentration using Salt Paper in health screening. Hokuriku J Public Health 1987; 14: 42–46 ( in Japanese).

    Google Scholar 

  24. Yamasue K, Tochikubo O, Kono E, et al: Self-monitoring of home blood pressure with estimation of daily salt intake using a new electrical device. J Hum Hypertens 2006; 20: 593–598.

    CAS  PubMed  Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to Yuhei Kawano.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Kawano, Y., Tsuchihashi, T., Matsuura, H. et al. Report of the Working Group for Dietary Salt Reduction of the Japanese Society of Hypertension: (2) Assessment of Salt Intake in the Management of Hypertension. Hypertens Res 30, 887–893 (2007). https://doi.org/10.1291/hypres.30.887

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1291/hypres.30.887

Keywords

  • salt intake
  • food weighing
  • food questionnaire
  • urinary sodium excretion
  • hypertension

Further reading

Search

Quick links