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Review
Copyright ©The Author(s) 2025.
World J Gastroenterol. Nov 14, 2025; 31(42): 113170
Published online Nov 14, 2025. doi: 10.3748/wjg.v31.i42.113170
Table 1 Major intestinal flora
Phyla
Genus
Number
BacteroidetesBacteroides, Porphyromonas, and PucciniaMore, accounting for more than 90%
FirmicutesClostridium, Clostridium tenella, Eubacterium, Rumen coccus and Lactobacillus
ActinobacteriaBifidobacterium and gas-producing CollinsLess quantity
ProteobacteriaEnterobacteriaceae bacteria, Helicobacter pylori
VerrucomicrobiaVerrucomicrobium