Dietary intake and urinary excretion of selenium in the Japanese adult population: The INTERMAP Study Japan

S. Yoneyama, K. Miura*, K. Itai, K. Yoshita, H. Nakagawa, T. Shimmura, A. Okayama, K. Sakata, S. Saitoh, H. Ueshima, P. Elliott, J. Stamler

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


Objective: This study is to examine the relationship between dietary selenium intake and 24-h urinary selenium excretion in Japanese population samples participating in the INTERMAP Study. Methods: Using highly standardized methods, we assessed individual dietary selenium intake from four 24-h dietary recalls and measured urinary selenium excretion in two timed 24-h urine collections in 1145 Japanese participants (574 men and 571 women) ages 40-59 years in four areas of Japan. Results: The medians of dietary selenium intake were 177.5 μg/day in men and 139.8 μg/day in women; the medians of 24-h urinary selenium excretion were 127.9 μg/day in men and 109.4 μg/day in women, that is, urinary excretion was estimated to be 73% of dietary intake in men and 77% in women. Dietary selenium intake was significantly correlated with 24-h urinary selenium excretion (r = 0.24 in men, r = 0.18 in women; P < 0.001). With dietary selenium intake and urinary selenium excretion expressed per kg of body weight, values were similar for men and women (dietary intake, 2.7 μg/kg body weight in men and 2.5 μg/kg body weight in women; urinary excretion, 2.0 μg/kg body weight in men and 2.0 μg/kg body weight in women). Conclusion: Dietary intake and 24-h urinary excretion of selenium are related in the Japanese adult population.

Original languageEnglish (US)
Pages (from-to)1187-1193
Number of pages7
JournalEuropean Journal of Clinical Nutrition
Issue number10
StatePublished - 2008

ASJC Scopus subject areas

  • Nutrition and Dietetics
  • Medicine (miscellaneous)


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