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.
Fat-soluble vitamins are stored in the body's fatty tissue. The four fat-soluble vitamins are vitamins A, D, E, and K. These vitamins are absorbed more easily by the body in the presence of dietary fat. There are nine water-soluble vitamins. The body must use water-soluble vitamins right away. Any leftover water-soluble vitamins leave the body through the urine.