Table 1 Composition of fecal bile acids detected by UPLC–MS (abundance)
| Â | PreWL | Percent | PostWL | Percent | Paired T test |
|---|---|---|---|---|---|
Conjugated BA | |||||
 Taurocholic | 76 |  | 90 |  |  |
 Taurochenodeoxycholic | 21 |  | 61 |  |  |
 Glycochenodeoxycholic | 74 |  | 344 |  |  |
 Glycoursocholic | 13 |  | 127 |  |  |
 Glycolithocholic | 32 |  | 8 |  |  |
Total conjugated BA | 216 | 1.2 | 620 | 4.8 | 0.08 |
Unconjugated BA | |||||
 Lithocholic | 5573 | 30.6 | 2372 | 18.4 | 0.11 |
 Isolithocholic | 1399 | 7.7 | 7.2 | 5.5 | 0.14 |
 Muricholic + 3-β-muricholic | 114 | 0.6 | 66 | 0.5 | 0.47 |
 Cholic | 1049 | 5.8 | 3796 | 29.5 | 0.47 |
 Deoxycholic | 9306 | 51.1 | 4721 | 36.7 | 0.07 |
 Ursocholic | 565 | 3.1 | 550 | 4.3 | 0.97 |
Total unconjugated BA | 18,222 | 98.8 | 12,847 | 95.5 | 0.07 |
Total bile acids | 18,625 | 100 | 13,786 | 100 | 0.02 |