Woah, this is long. Seems pretty technical, but if you're very interested in vitamin K and its benefits, give it a try.

I learned a lot about clotting and Vitamin K's role in clotting from this site. Something that people with clotting disorders may want to watch.

Very long, but listening to this highly enthusiastic doctor is enlightening. I tend to step back when I see someone selling something during a lecture, but he certainly offers some very unique views, backed by research, that could change how we look at Vitamin K in a cardiology setting. I think this video is worth a listen if you can think on your toes and are not intimidated by medical jargon.