THE EFFECT OF DIETARY-SODIUM AND PROTEIN ON URINE VOLUME AND WATER-INTAKE

  • 1 January 1983
    • journal article
    • research article
    • Vol. 101  (4) , 605-610
Abstract
To test the notion that water intake and urine volume are related to dietary Na or protein intake in free-living persons, normal men were studied at 3 levels of Na intake and 2 levels of protein intake. Men (24) received 10,200 and 400 mEq/day Na intake for 7 days while protein and caloric intake were maintained constant. Eight men received 80 or 180 gm/day protein intake for 7 days while caloric and Na intake were maintained constant. Although Na, solute and urea N excretion changed appropriately according to the regimens, there was no demonstrable influence of Na or protein intake on water intake and urine volume. In normal free-living American man, water consumption is independent of either Na or protein intake.

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