Estimation of Trans Fatty Acid Intake in Japanese Adults Using 16-Day Diet Records Based on a Food Composition Database Developed for the Japanese Population

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  • Yamada Mai
    Department of International Health, Graduate School of Medicine, The University of Tokyo
  • Sasaki Satoshi
    Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo
  • Murakami Kentaro
    Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo
  • Takahashi Yoshiko
    Department of Health and Nutrition, School of Home Economics. Wayo Women’s University
  • Okubo Hitomi
    Department of Social and Preventive Epidemiology, Graduate School of Medicine, The University of Tokyo
  • Hirota Naoko
    Department of Health and Nutritional Science, Faculty of Human Health Science, Matsumoto University
  • Notsu Akiko
    Department of Food Science and Nutrition, Tottori College
  • Todoriki Hidemi
    Department of Public Health and Hygiene, School of Medicine, University of the Ryukyus
  • Miura Ayako
    Institutional affiliation: Department of Health and Nutritional Science, Faculty of Health Promotional Science, Hamamatsu University
  • Fukui Mitsuru
    Laboratory of Statistics, School of Medicine, Osaka City University
  • Date Chigusa
    Department of Food Science and Nutrition, Faculty of Human Life and Environment, Nara Women’s University

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Background: The Standard Tables of Food Composition in Japan do not include information on trans fatty acids. Previous studies estimating trans fatty acid intake among Japanese have limitations regarding the databases utilized and diet assessment methodologies. We developed a comprehensive database of trans fatty acid food composition, and used this database to estimate intake among a Japanese population.<BR>Methods: The database was developed using analytic values from the literature and nutrient analysis software encompassing foods in the US, as well as values estimated from recipes or nutrient compositions. We collected 16-day diet records from 225 adults aged 30 to 69 years living in 4 areas of Japan. Trans fatty acid intake was estimated based on the database and the 16-day diet records.<BR>Results: Mean total fat and trans fatty acid intake was 56.9 g/day (27.7% total energy) and 1.7 g/day (0.8% total energy), respectively, for women and 66.8 g/day (25.5% total energy) and 1.7 g/day (0.7% total energy) for men. Trans fatty acid intake accounted for greater than 1% of total energy intake, which is the maximum recommended according to the World Health Organization, in 24.4% of women and 5.7% of men, and was particularly high among women living in urban areas and those aged 30–49 years. The largest contributors to trans fatty acid intake were confectionaries in women and fats and oils in men.<BR>Conclusions: Although mean trans fatty acid intake was below the maximum recommended intake of the World Health Organization, intake among subgroups was of concern. Further public health efforts to reduce trans fatty acid intake should be encouraged.

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