. 2013 Nov 27;306(4):G310–G319. doi: 10.1152/ajpgi.00282.2013

Table 5.

Fecal metabolite markers of FMT

ID	[M-H]⁻	Formula	Identity	Effect of FMT
I	407.2798	C₂₄H₄₀O₅	Cholic acid	↓
II	391.2848	C₂₄H₄₀O₄	Chenodeoxycholic acid	↓
III	391.2848	C₂₄H₄₀O₄	Deoxycholic acid	↑
IV	375.2899	C₂₄H₄₀O₃	Lithocholic acid	↑
V	391.2848	C₂₄H₄₀O₄	Isodeoxycholic acid	↑
VI	514.2839	C₂₆H₄₅NO₇S4	Taurocholic acid	↓
VII	498.2889	C₂₆H₄₅NO₆S	Taurochenodeoxycholic acid	↓
VIII	464.2817	C₂₆H₄₃NO₆	Glycocholic acid	↓
IX	448.3063	C₂₆H₄₃NO₅	Glycochenodeoxycholic acid	↓

Major primary and secondary bile acids and conjugates of primary bile acids (I–IX) were identified as metabolite markers contributing to separation of pre-FMT samples from post-FMT and donor samples in metabolomic analysis. [M-H]⁻, mass-to-charge ratio of deprotonated metabolite; ↑, increased after FMT; ↓, decreased after FMT.