https://wiki.tiffa.net/w/index.php?action=history&feed=atom&title=Translations%3AVitamin_B12%2F37%2FenTranslations:Vitamin B12/37/en - Revision history2026-05-12T14:48:44ZRevision history for this page on the wikiMediaWiki 1.43.0https://wiki.tiffa.net/w/index.php?title=Translations:Vitamin_B12/37/en&diff=135231&oldid=prevFuzzyBot: Importing a new version from external source2024-04-05T11:15:35Z<p>Importing a new version from external source</p>
<p><b>New page</b></p><div>==Sources==<br />
===Bacteria and archaea===<br />
Vitamin B<sub>12</sub> is produced in nature by certain [[bacteria]], and [[archaea]]. It is synthesized by some bacteria in the [[gut microbiota]] in humans and other animals, but it has long been thought that humans cannot absorb this as it is made in the [[Large intestine|colon]], downstream from the [[small intestine]], where the absorption of most nutrients occurs. [[Ruminant]]s, such as cows and sheep, are foregut fermenters, meaning that plant food undergoes microbial fermentation in the [[rumen]] before entering the true stomach ([[abomasum]]), and thus they are absorbing vitamin B<sub>12</sub> produced by bacteria.</div>FuzzyBot