biotin is the vitamin produced by bacteria in the gut.
biotin is the vitamin produced by bacteria in the gut.
what vitamin is produced by bacteria in the gut?
biotin
b is only produced in nature by certain bacteria, and archaea. it is synthesized by some bacteria in the gut flora in humans and other animals, but humans cannot absorb this as it is made in the colon, downstream from the small intestine, where the absorption of most nutrients occurs. ruminants, such as cows and sheep, absorb b produced by bacteria in their guts. for gut bacteria of ruminants to produce b the animal must consume sufficient amounts of cobalt. these grazing animals acquire the bacteria that produce vitamin b, and the vitamin itself.
vitamin b12
bacteria in the gut flora can also convert k into vitamin k (menaquinone). in addition, bacteria typically lengthen the isoprenoid side chain of vitamin k to produce a range of vitamin k forms, most notably the mk-7 to mk-11 homologues of vitamin k. all forms of k other than mk-4 can only be produced by bacteria, which use these during anaerobic respiration. the mk-7 and other bacterially derived forms of vitamin k exhibit vitamin k activity in animals, but mk-7's extra utility over mk-4, if any, is unclear and is a matter of investigation.
vitamin k