Methanobrevibacter spp.
Methanobrevibacter species are archaea—microorganisms distinct from bacteria—that primarily inhabit the human gut. These microbes are known for producing methane gas as a byproduct of fermentation, especially from hydrogen and carbon dioxide. Elevated levels of Methanobrevibacter spp. have been associated with slowed intestinal transit and symptoms like constipation and bloating. Unlike many bacteria, archaea are not affected by standard antibiotics, making their overgrowth more complex to manage. Their presence provides insight into the balance of microbial communities and gas production in the gut.
Description
They are methane-producing archaea commonly found in the human gut, distinct from bacteria.
They influence gas production and intestinal transit; high levels are often linked to constipation and bloating.
No, since they are archaea, they are not susceptible to typical antibiotics used for bacterial overgrowth.
It may suggest methane-dominant dysbiosis, which is often associated with slowed gut motility and functional bowel disorders.
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