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. 2009 May;117(5):A198–A205. doi: 10.1289/ehp.117-a198

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graphic file with name ehp-117-a198f1.jpg — (opposite) The gut contains thousands of microbial species, including:

1) Ruminococcus

2) Bifidobacterium

3) Peptostreptococcus

4) Staphylococcus

5) Lactobacillus

6) Acidaminococcus

7) Fusobacterium

8) Eubacterium

9) Clostridium

10) Coprococcus

11) Escherichia

12) Butyrivibrio

13) Bacteroides

14) Brachyspira