Estimation of Total Body Fat from Potassium-40 Content

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Science  13 Jan 1961:
Vol. 133, Issue 3446, pp. 101-102
DOI: 10.1126/science.133.3446.101


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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