Percent of daily calories supplied by microbiota

Range 10-15 %
Organism Human Homo sapiens
Reference Xu J, Bjursell MK, Himrod J, Deng S, Carmichael LK, Chiang HC, Hooper LV, Gordon JI.A genomic view of the human-Bacteroides thetaiotaomicron symbiosis. Science. 2003 Mar 28 299(5615):2074-6. p.2075 left column 2nd paragraphPubMed ID12663928
Primary Source Bergman EN. Energy contributions of volatile fatty acids from the gastrointestinal tract in various species. Physiol Rev. 1990 Apr70(2):567-90.PubMed ID2181501
Comments "Sixty-one percent of [Bacteroides thetaiotaomicron's] glycosylhydrolases are predicted to be in the periplasm or outer membrane or extracellular. This suggests that these enzymes are not only important for fulfilling the needs of B. thetaiotaomicron but may also help shape the metabolic milieu of the intestinal ecosystem in ways conducive to maintaining a microbiota that supplies us with 10 to 15% of our daily calories as fermentation products of dietary polysaccharides (primary source)."
Entered by Avi Flamholz
ID 109650