Figure 4.

Electrolyte excretion and clearance under normal and low Na+ diet. (A): excretion of Na⁺, Cl⁻ and K⁺, normalized by urine creatinine. (B): clearance of Na⁺, Cl⁻ and K⁺. * p < 0.05, non-parametric test, Mann–Whitney, normal vs. low Na+ diet. Data are mean ± SEM. n ≥ 4.