Influence of Dietary Potassium on Potassium-42,Rubidium-86 and Cesium-134 Retention in the Rat. ∗

Summary

An increase in dietary potassium has been shown to increase excretion of cesium-134, potassium-42 and rubidium-86. Interpretation of the first significant increase in excretion of these radionuclides as being the point at which dietary potassium is adequate would place the potassium requirement of the rat between 0.075 and 0.15%, probably between 0.1 and 0.15%. This is supported by the growth data.