Facts about the Gut Microbiome

1. 08

   Rotavirus infection can reduce gut microbiome diversity by up to 50% within days, with recovery of bacterial richness taking 4-6 weeks even after viral clearance.

   the Gut MicrobiomeMay 14shareinfectiondiversitytemporal
2. 07

   Methanogenic archaea in the human colon produce methane gas, with approximately 30-60% of people classified as methane producers based on breath tests measuring exhaled CH4 levels.

   the Gut MicrobiomeMay 14sharebiologymeasurementmetabolism
3. 06

   Consuming prebiotics like inulin increases Bifidobacterium abundance in the gut microbiome by up to 10-fold within two weeks of dietary supplementation.

   the Gut MicrobiomeMay 14sharenutritionmeasurementbiology
4. 05

   Faecalibacterium prausnitzii, one of the most abundant bacteria in healthy human colons, produces butyrate that strengthens intestinal barrier function and reduces inflammation through histone deacetylase inhibition.

   the Gut MicrobiomeMay 14sharebiologychemistryhealth
5. 04

   Individuals with inflammatory bowel disease show significantly reduced microbial diversity, with fewer than 1,000 bacterial species compared to the 1,000-1,150 species found in healthy gut microbiomes.

   the Gut MicrobiomeMay 14sharediseasemeasurementdiversity
6. 03

   Short-chain fatty acids produced by gut microbiome bacteria during fiber fermentation reduce colon pH to 5.5-6.5, inhibiting pathogenic species like Clostridium difficile.

   the Gut MicrobiomeMay 14sharemetabolismchemistrydefense
7. 02

   Approximately 38 trillion bacterial cells inhabit the adult human gut microbiome, outnumbering human cells in the body by a ratio of roughly 1.3 to 1.

   the Gut MicrobiomeMay 14sharemeasurementbiologyphysiology
8. 01

   Bacteroides fragilis, comprising up to 1% of human gut microbiome cells, produces polysaccharide A that actively trains immune system development in infants.

   the Gut MicrobiomeMay 13sharebiologyimmunologymeasurement