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Science 13 January 1961:
Vol. 133. no. 3446, pp. 101 - 102
DOI: 10.1126/science.133.3446.101
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Articles

Estimation of Total Body Fat from Potassium-40 Content

Gilbert B. Forbes 1, James Gallup 1, and John B. Hursh 1

1 School of Medicine and Dentistry, University of Rochester, Rochester, New York

On the assumption that the potassium content of the lean body mass is constant, it should be possible to estimate fat content in living man from a measurement of potassium-40 activity in the whole-body scintillation counter. A series of such measurements on children and young adults shows good correlations with skin-fold thickness and weight/height ratio as indices of fatness.


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