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The Copper Metabolism and Requirement of Young Women¹

One Figure

Human Nutrition Laboratory, Department of Home Economics, University of Nebraska, Lincoln

Data on the copper metabolism of young women are reported from two sources: Ninety-five 1-week studies of sixty–five young women on self-chosen diets, and a long-time study of four young women on an adequate constant diet.

The average daily intake by the subjects on the self-chosen diets was 2.65 mg. of copper and their average daily retention was 0.85 mg. For the subjects on the constant diet the average daily intake and retention of copper were 2.14 mg. and 0.23 mg. respectively.

As the copper intakes increased a large proportion of each increase was retained.

The copper content of sixteen menses for four subjects varied greatly from one period to another.

Considerable evidence is advanced in support of the theory that the body does not excrete copper and that the intestinal tract may handle copper as it does iron.

A daily allowance of 2.0–2.5 mg. of copper is suggested for young women together with evidence that this amount can be obtained from diets of otherwise mediocre nutritive value.

² Now a member of the Food Staff, McCall Corporation.

Manuscript received 26 July 1943.