Low-FODMAP vs regular rye bread in irritable bowel syndrome: Randomized SmartPill® study

Table 3 SmartPill-derived transit times, pH values, mean pressure, and contractions/min median (range)

	Low-FODMAP rye bread	Regular rye bread	P value1
Transit time (h)
Stomach	18.1 (5.3-22.3)	5.6 (4.5-18.0)	0.091
Small intestine	4.0 (2.1-5.6)	4.6 (3.2-6.6)	0.866
Colon	25.2 (12.2-50.0)	32.1 (14.7-47.6)	0.176
Whole GI tract	46.5 (22.6-73.5)	45.8 (24.3-70.4)	0.612
Median pH
Stomach	1.5 (0.8-4.1)	1.5 (1.0-2.4)	0.671
Small intestine	7.5 (5.0-8.0)	7.6 (7.0-7.8)	0.915
Colon	7.2 (5.8-7.5)	6.5 (5.9-8.5)	0.612
Mean pressure (mmHg)
Stomach	2.2 (1.9-2.7)	2.5 (2.0-3.0)	0.610
Small intestine	3.1 (1.6-8.6)	4.5 (2.4-7.0)	0.398
Colon	4.8 (3.2-6.3)	4.0 (2.0-6.7)	0.310
Contractions/min
Stomach	1.2 (0.6-1.7)	1.0 (0.8-1.8)	0.553
Small intestine	3.2 (0.5-6.1)	4.9 (1.9-6.5)	0.176
Colon	1.7 (1.3-2.9)	1.7 (0.6-3.3)	0.495

¹Wilcoxon signed-rank test.