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Intermittent and continuous faecal markers in short-term metabolic balance studies in young women

Published online by Cambridge University Press:  09 March 2007

Susan J. Sharpe  and
Marion F. Robinson
Susan J. Sharpe
Affiliation:
Department of Nutrition, University of Otago School of Home Science, Dunedin, New Zealand
Marion F. Robinson
Affiliation:
Department of Nutrition, University of Otago School of Home Science, Dunedin, New Zealand
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Abstract

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1 The continuous faecal marker chromic oxide, Cr2O3, and the intermittent marker brilliant blue were used together in metabolic balance studies of calcium and magnesium in two young women.

2. Faecal output was derived by four methods: no marker, brilliant blue, Cr2O3, or both brilliant blue and Cr2O3.

3. Balances of Ca and Mg derived by the four methods of obtaining faecal output were compared.

4. Recovery of ingested Cr2O3 in the faeces appeared complete in experiments on three further subjects, with only a negligible amount being excreted in the urine.

5. Simultaneous use of both types of marker is recommended for short-term balance studies of nutrients such as Ca and Mg which are not readily absorbed.

Type
Research Article
Information
British Journal of Nutrition , Volume 24 , Issue 2 , June 1970 , pp. 489 - 500
Copyright
Copyright © The Nutrition Society 1970

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