Skip to main content
. 2015 Nov 11;16(11):26936–26952. doi: 10.3390/ijms161125995

Table 2.

Physiological Properties of the Gastrointestinal Tract *

Organ pH Transit Time (h) Bacterial Count (CFU/mL)
Stomach 2–3 <1 (fasting), >3 (fed) 102–104
Small intestine 6.5–7 3–4 103–104
Large intestine 7–8 >20 1011–1012

* Data taken from [53,54,55,56].