A: mean cumulative fluid intake (ml/100 g) of rats replete for water following an osmotic challenge of either 2% salt (wt/vol; SL) for 7 days or WD for 3 days compared with EU animals (means ± SE) B: mean weight (g) of SL, WD, and EU animals after osmotic challenge and after repletion (means ± SE). Significance: *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001.