Iron intake does not significantly correlate with iron deficiency among young Japanese women: A cross-sectional study

Keiko Asakura, Satoshi Sasaki, Kentaro Murakami, Yoshiko Takahashi, Kazuhiro Uenishi, Miki Yamakawa, Yuji Nishiwaki, Yuriko Kikuchi, Toru Takebayashi, Mitsuyo Yamasaki, Yuko Hisatomi, Junko Soezima, Kazumi Takedomi, Toshiyuki Kohri, Naoko Kaba, Etsuko Uneoka, Hitomi Hayabuchi, Yoko Umeki, Keiko Baba, Maiko SuzukiReiko Watanabe, Kanako Muramatsu, Kazuko Ohki, Seigo Shiga, Hidemichi Ebisawa, Masako Fuwa, Tomoko Watanabe, Ayuho Suzuki, Fumiyo Kudo, Katsumi Shibata, Tsutomu Fukuwatari, Junko Hirose, Toru Takahashi, Masako Kato, Toshinao Goda, Yoko Ichikawa, Junko Suzuki, Yoko Niida, Satomi Morohashi, Chiaki Shimizu, Naomi Takeuchi, Jun Oka, Tomoko Ide, Yoshiko Sugiyama, Mika Furuki

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Objectives: We evaluated the association of nutrient intake with Fe deficiency with regard to lifestyle factors and health condition in young Japanese women. Uniquely among developed countries, dietary habits render Japanese populations vulnerable to Fe deficiency, owing to their relatively low intake of Fe and high intake of Fe absorption inhibitors, such as green tea and soyabeans. Design: A cross-sectional study. Setting and subjects: The subjects were 1019 female Japanese dietetic students aged 18-25 years. Dietary habits during the preceding month were assessed using a previously validated, self-administered, diet history questionnaire. Blood analysis was performed to assess body Fe status. Subjects were categorized with Fe deficiency when their serum ferritin levels were <12 ng/ml. Twenty-nine dietary variables, i.e. intakes of energy, sixteen nutrients including Fe and twelve food groups, were analysed using multivariate logistic regression models adjusted for possible confounders. Results: Of the subjects, 24.5 % were categorized with Fe deficiency. However, no dietary factors assessed were significantly associated with Fe deficiency. The risk of Fe deficiency was significantly lower in women with infrequent or no menstrual cycles than in those with regular cycles (OR = 0.58; 95 % CI 0.34, 1.00) and significantly higher in women with heavy menstrual flow than in women with average flow, albeit that these were self-reported (OR = 1.83; 95 % CI 1.35, 2.48). Conclusions: These results suggest that dietary habits, including Fe intake, do not significantly correlate with Fe deficiency among young Japanese women.

Original languageEnglish
Pages (from-to)1373-1383
Number of pages11
JournalPublic Health Nutrition
Volume12
Issue number9
DOIs
Publication statusPublished - 2009 Sep 1

Keywords

  • Iron deficiency
  • Iron intake
  • Menstrual condition
  • Young Japanese women

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health

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    Asakura, K., Sasaki, S., Murakami, K., Takahashi, Y., Uenishi, K., Yamakawa, M., Nishiwaki, Y., Kikuchi, Y., Takebayashi, T., Yamasaki, M., Hisatomi, Y., Soezima, J., Takedomi, K., Kohri, T., Kaba, N., Uneoka, E., Hayabuchi, H., Umeki, Y., Baba, K., ... Furuki, M. (2009). Iron intake does not significantly correlate with iron deficiency among young Japanese women: A cross-sectional study. Public Health Nutrition, 12(9), 1373-1383. https://doi.org/10.1017/S1368980008004072