By Elaine WATSON Elaine WATSON, 14-Aug-2013. The FDAâs decision to give the thumbs up to spirulina as a source of blue color in candy and gum finally gives US firms a natural alternative to artificial FD&C Blue #1 ('brilliant blue') and opens up new opportunities in natural greens, say color suppliers.
Actually I just looked it up to make sure and yes biotin is created in the large intestine by bacteria. Also vitamin K is as well, but vitamin K is a fat soluble vitamin where biotin is water soluble. Source(s): http://www.vivo.colostate.edu/hbooks/pat... Plus having CF makes me take a lot of vitamins plus its an interesting topic to me.
There are two types of vitamins: water soluble and fat soluble. Water soluble vitamins include vitamins B1, B2, B3, B6, B12, vitamin C, biotin and folate. They are not stored in large amounts in the body, and any extra is lost through your urine. Fat soluble vitamins include vitamins A, D, E and K and they can be stored in your body.