No one did, they just discovered it.
Vitamin K.
Vitamin c has been around for quite a long time, since fruits and all have been around for a long time. Invented is a bit unappropiate term to use for the question since it wasn't invented, but you could say when did humans first synthesize it. It was first created(invented)in the lab in 1935 by a Swiss lab, mainly by Dr. tadeusz.
vitamin k
Shortest answer, no. Vitamin K is a vitamin.
Vitamin K is responsible for the clotting of blood..
vitamin k has no particular structure.............
K
Vit K is administered I.M. after birth.
Vitamin K is commonly called the 'Blood-Clotting' vitamin.
Yes popcorn doe's have vitamin k in it
They have a low amount of vitamin k
Vitamin K!