Organic acid	WT-Sham	WT-VSG	KO-Sham	KO-VSG	p-value (2-way ANOVA)
Acetate (μmol/g)	142.33 ± 20.45	153.46 ± 26.77	124.54 ± 23.61	160.86 ± 25.04	ns
Propionate (μmol/g)	24.80 ± 3.28	19.60 ± 4.29	15.14 ± 3.78	20.32 ± 4.01	ns
Isobutyrate (μmol/g)	9.56 ± 1.71	10.41 ± 2.24	9.11 ± 1.98	10.09 ± 2.09	ns
Butyrate (μmol/g)	19.20 ± 3.42	24.75 ± 4.48	17.55 ± 3.95	29.79 ± 4.19	p (surgery) < 0.05
Isovalerate (μmol/g)	6.25 ± 0.99	7.02 ± 1.3	5.78 ± 1.14	7.08 ± 1.21	ns
Valerate (μmol/g)	2.50 ± 0.41	2.77 ± 0.54	2.19 ± 0.41	2.99 ± 0.41	ns
Hexanoate (μmol/g)	1.14 ± 0.37	1.73 ± 0.49	0.79 ± 0.43	1.74 ± 0.46	ns
Hepthanoate (μmol/g)	0.0080 ± 0.0027	0.0088 ± 0.0027	0.0032 ± 0.0032	0.0088 ± 0.0036	ns
Octanoate (μmol/g)	0.013 ± 0.0056	0.027 ± 0.0073	0.0073 ± 0.0064	0.019 ± 0.0068	ns
Lactate (μmol/g)	13.63 ± 14.80	75.76 ± 19.38	6.95 ± 17.10	38.20 ± 18.13	p (surgery) < 0.01
Succinate (μmol/g)	4.29 ± 2.01	4.55 ± 2.63	5.17 ± 2.32	8.81 ± 2.46	ns
Fumarate (μmol/g)	0.50 ± 0.23	0.82 ± 0.30	0.91 ± 0.27	1.16 ± 0.28	ns
Total SCFAs (C2-C4)	186.33 ± 26.50	197.82 ± 34.70	157.23 ± 30.60	210.99 ± 32.46	ns