Table 3. Gut morphology.

Final gut regional weight and lengths in diet-induced obese rats fed high fat diet (HF), high fat diet with 10% w/w pectin (HF+P), low fat diet (LF) or low fat diet with 10% w/w pectin (LF+P) for 4 weeks in two independently replicated experiments. Within rows, means with different superscript letters are significantly different (by ANOVA followed by Tukey’s post hoc tests).

	Diet (n = 16 per group)								ANOVA
	HF		HF+P		LF		LF+P		Significance
	Mean	s.e.m.	Mean	s.e.m.	Mean	s.e.m.	Mean	s.e.m.	Diet	Expt	Interaction
Stomach (g)	7.2	0.70	6.1	0.34	7.4	0.34	6.2	0.47	ns	ns	ns
SI (g)	11.0b	0.37	13.6a	0.34	9.1c	0.26	14.4a	0.58	P<0.001	ns	ns
SI length (mm)	1101b	14.9	1181a	20.5	1071b	12.7	1213a	20.3	P<0.001	ns	ns
Caecum–full (g)	2.9b	0.25	6.9a	0.38	3.2b	0.20	8.0a	0.40	P<0.001	ns	ns
Caecum–empty (g)	1.3b	0.10	2.6a	0.14	1.2b	0.05	2.8a	0.13	P<0.001	ns	ns
Caecum length (mm)	37.9b	2.39	53.3a	1.79	35.7b	1.49	52.5a	1.70	P<0.001	ns	ns
Colon (g)	3.4ab	0.25	3.6ab	0.28	3.0b	0.26	4.1a	0.22	P<0.001	ns	ns
Colon length (mm)	168	2.7	167	3.8	166	2.6	171	4.8	ns	ns	ns