[Recommended daily allowance and dietary reference intakes for vitamin D and calcium in Japanese].
In the sixth edition of the recommended dietary allowance (RDA) for Japanese-dietary reference intakes by the Ministry of Health, Labour and Welfare, Japan, RDA and tolerable upper limit (UL) for vitamin D and calcium were set. RDA and UL for calcium were set on the basis of the calcium balance study and the factorial method. In contrast, plasma 25-hydroxyvitamin D level in subjects as a maker reflecting vitamin D nutrition status was first used for setting the RDA and UL in this edition.
Okano
Toshio
T
Department of Hygienic Sciences, Kobe Pharmaceutical University.