Abstract
For the purpose of finding the most adequate value of protein intake for the physical development of the Japanese children, an experiment of protein supplement was performed with 56 children of 2-10 years old. They were divided into four groups. The first group was given the diet chiefly composed of milled rice, the second milled rice and pressed farley (7:3), the third milled rice and roasted soybean flour as a protein supplement, and the fourth given fish powder instead of soybean flour of the third group.
The supplementing procedure was continued 2 months. However, there did not appear any improvement on protein retention. The result suggests that the usual intake of protein 2.5%/kg/day as the average value is not insufficient for their nomal growth.
The group which was given fish powder took more calcium 10mg/kg/day than other groups. However, there was no difference on calcium retention to them. We guess that their usual intake of calcium 20mg/kg/day is not insufficient for the calcium metabolism of children at those age.
