Hmmm; many years ago, I was taking prescription vitamin k, but then my drs said they (the manufactorers) discontinued it and put me on ADEK, and I haven't heard anything about it since (and now I am at the adult clinic). I'll have to ask about it when they do my levels this appointment- if I take 2 vitamins a day (as recommended by dr), it makes me feel bad (apparently, I get this from my mom, I discovered one day in Walmart when she was vitamin shopping-lol), so I just take one. I would like to have the extra vitamin k, though, if I need it (sorry, didn't mean to highjack again...<img src="i/expressions/face-icon-small-blush.gif" border="0">).