Potassium intake and the calcium economy.

  title={Potassium intake and the calcium economy.},
  author={Karen Rafferty and K. Michael Davies and Robert P. Heaney},
  journal={Journal of the American College of Nutrition},
  volume={24 2},
BACKGROUND Dietary potassium intake (K) lowers urinary calcium (Ca) excretion and, in short-term studies, may improve Ca balance. PURPOSE Our objective was to assess K effects on the Ca economy under steady-state conditions. DESIGN 8-day, inpatient metabolic studies of nitrogen, phosphorus, and Ca balance, combined with dual isotopic Ca tracer kinetics studies. Study diet matched to prestudy nutrient intakes. SUBJECTS 191 single women studied from 1-5 times at approximately 5-year… CONTINUE READING


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