Table 1.

The main bacterial genera of the gut microbiota involved in BA metabolism.

Function	Bacterial genera	References
BSH deconjugation	Bacteroides, Clostridium, Lactobacillus, Bifidobacterium, and Listeria	[29, 30]
Oxidation and epimerization of hydroxyl groups at C3, C7, and C12	Bacteroides, Eubacterium, Clostridium, Escherichia, Eggerthella, Peptostreptococcus, and Ruminococcus	[31–33]
7α-Dehydroxylation	Clostridium and Eubacterium	[34–36]
Esterification	Bacteroides, Eubacterium, and Lactobacillus	[37, 38]
Desulfation	Clostridium, Fusobacterium, Peptococcus, and Pseudomonas	[10, 14, 39]