Table 4. Changes in serum electrolytes following an acute dose of NaHCO₃ in human subjects.

	Pre-treatment		Post-treatment
	CON	TXT	CON	TXT
Na (mmol/L)	140.4 ± 0.9	141.1 ± 0.8	141.2 ± 0.4	140.8 ± 0.5
K(mmol/L)†	4.1 ± 0.1	4.3 ± 0.1	4.3 ± 0.1*	3.9 ± 0.1*
Cl− (mmol/L)	100.2 ± 0.9	100.9 ± 0.9	102.4 ± 0.4	102.3 ± 0.8

CON, control group (NaCl ingestion); TXT, treatment group (NaHCO₃ ingestion), Na, sodium; K, potassium; Cl⁻, chloride.

^*significant change versus baseline (p<0.05);

^†significant group × time interaction (p=0.029).