Effects of revision of Japanese food composition tables on estimation of nutrient intakes, with reference to age-dependent differences.
OBJECTIVE
To identify effects of revision of the Japanese food composition tables from the fourth version to the fifth version on nutrient intake estimation.


METHODS
A database on 783 samples of 24-hour food duplicate portions was re-visited. Nutrients in the duplicate portions were estimated by use of the fourth and fifth versions of the Japanese food composition tables in parallel, together with supplemental use of other databases. The two sets of estimates were subjected to comparison.


METHODS
The sample collection was conducted at 31 sites all over Japan.


METHODS
The sample donors were 783 women aged 20-78 years.


RESULTS
Compared with the estimates by use of the fourth version of the tables, the estimates by the fifth version were substantially higher for intakes of energy, carbohydrate, dietary fibre, vitamin A and niacin, and lower for iron intake. The increase in carbohydrate intake estimates was more evident in older women than in young women, whereas the decrease in the intake estimation of iron and the increase in that of dietary fibre were more marked in young women than in older women.


CONCLUSIONS
The recent revision of food composition tables in Japan induced substantial changes in the estimation of nutrient intakes, i.e. an increase in energy, carbohydrate, dietary fibre, vitamin A and niacin, and a decrease in iron. The extent of the changes varied depending on age.
Department of Food and Nutrition, Kyoto Women's University, Kyoto, Japan.
Naoko
N
Matsuda-Inoguchi
Shinichiro
S
Shimbo
Haruo
H
Nakatsuka
Takao
T
Watanabe
Kae
K
Higashikawa
Masayuki
M
Ikeda
D000328:Adult; D000367:Age Factors; D000368:Aged; D016208:Databases, Factual / Q000592:standards*; D004032:Diet; D004034:Diet Surveys; D004043:Dietary Fiber / Q000008:administration & dosage; D002149:Energy Intake; D005260:Female; D005504:Food Analysis / Q000379:methods* / Q000592:standards; D006801:Humans; D019266:Iron, Dietary / Q000008:administration & dosage; D007564:Japan; D008875:Middle Aged; D009525:Niacin / Q000008:administration & dosage; D014801:Vitamin A / Q000008:administration & dosage
D004043:Dietary Fiber; D019266:Iron, Dietary; D014801:Vitamin A; D009525:Niacin