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Iron Balances on Four Normal Pre-School Children¹

Section of Home Economics, Department of Food and Nutrition, Michigan Agricultural Experiment Station, East Lansing

Thirty-five iron balances on four normal pre-school children, 3 and 5 years old, are reported in this study. For 63 days, which were divided into nine 7-day experimental periods, the children received daily a mixed diet furnishing an average iron content of 5.64 mg., or 0.31 mg. per kilogram of body weight.

On this iron intake varying amounts of the mineral were stored, ranging from a state of practical equilibrium to 2.90 mg. of iron per day. The average iron retention by all children throughout the study was 1.24 mg., or 0.07 mg. per kilogram of body weight per day.

The average level of retention represented about 22% of the intake of iron.

The replacement of 1 ounce of plain farina in the basal diet with an equivalent quantity of farina fortified with irradiated yeast containing 120 I.U. of vitamin D had no significant effect on iron retentions.

The preliminary phases of this study were conducted in the Nutrition Laboratory of the Department of Home Economics of The University of Chicago; the expense of these portions of the work was defrayed by a grant from the Quaker Oats Company, Chicago.

Manuscript received 9 September 1940.

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