. 2004 May;17(2):79–88. doi: 10.1055/s-2004-828654

Table 1.

Composition and Volume of Intestinal Secretions

Source	Volume (mL/day)	Na (mmol/L)	K (mmol/L)	Cl (mmol/L)	HCO₃ (mmol/L)
Saliva	1500	10	26	15	50
Gastric	1500	100	10	100	0
Duodenal	2000	130	5	90	10
Ileal	3000	140	5	100	30
Pancreatic	800	140	5	75	115
Biliary	800	150	5	100	35