Dietary Intake of Nutrients with Adequate Intake Values in the Dietary Reference Intakes for Japanese

• Published in: Journal of Nutritional Science and Vitaminology 2013, Vol.59(6), pp.584-595
• Main Authors: TSUBOYAMA-KASAOKA, Nobuyo, TAKIZAWA, Asuka, TSUBOTA-UTSUGI, Megumi, NAKADE, Makiko, IMAI, Eri, KONDO, Akiko, YOSHIDA, Kazue, OKUDA, Nagako, NISHI, Nobuo, TAKIMOTO, Hidemi
• Format: Article
• Language: English
• Subjects: Adequate Intake (AI); Dietary Reference Intakes (DRIs); median intake; National Health and Nutrition Survey-Japan (NHNS-J)
• ISSN: 0301-4800; 1881-7742
• DOI: 10.3177/jnsv.59.584

The Adequate Intake (AI) values in the Dietary Reference Intakes for Japanese (DRIs-J) 2010 were mainly determined based on the median intakes from 2 y of pooled data (2005-2006) from the National Health and Nutrition Survey-Japan (NHNS-J). However, it remains unclear whether 2 y of pooled data from the NHNS-J are appropriate for evaluating the intake of the population. To clarify the differences in nutrient intakes determined from 2 and 7 y of pooled data, we analyzed selected nutrient intake levels by sex and age groups using NHNS-J data. Intake data were obtained from 64,624 individuals (age: ≥1 y; 47.4% men) who completed a semi-weighed 1-d household dietary record that was part of the NHNS-J conducted annually in Japan from 2003 to 2009. There were no large differences between the median intakes calculated from 2 or 7 y of pooled data for n-6 or n-3 polyunsaturated fatty acids (PUFAs), vitamin D, pantothenic acid, potassium, or phosphorus. When the AI values and median intakes were compared, there was no large difference in the values for n-6 or n-3 PUFAs, pantothenic acid, or phosphorus. Conversely, the AI values for vitamin D and potassium differed from the median intakes of these nutrients for specific sex and age groups, because values were not based on NHNS-J data. Our results indicate that 2 y of pooled data from the NHNS-J adequately reflect the population's intake, and that the current system for determination of AI values will be applicable for future revisions.