Table 1.

Differences in K⁺ handling with alkaline versus acidic LNaHK diets

	Diet	Anion	Urine pH	Plasma K+ Concentration, mM	Transtubular K+ Gradient
Ref. 169	LNaHK	Carb/Citr/Cl−	8.59	4.71	22.9
Ref. 30	LNaHK-AW	Carb/Citr/Cl−	6.63	6.8	15.1
Ref. 169	LNaHK	Cl−	5.89	9.3	10.2

All diets were given for 7–10 days. LNaHK-AW = low-Na⁺, high-K⁺ diet (LNaHK) with acid (280 mM NH₄Cl plus 2% sucrose) drinking water. Carb/Citr/Cl, equal parts carbonate, citrate, and Cl⁻ anions with K⁺.