I keep getting conflicting information on the advisability of taking large amounts of Vitamin K. I am taking 2100 mcg (1000 K1, 1000 K2-as menaquinone-4). My Endocrinologist tells me to stop taking it because of the risk of blood clots, but what I'm reading on the Internet says, as long as one is not on any blood thinners (such as Coumadin), there is no risk. I also know that there is confusion around the units of measure. I believe you need 1000 mcg to equal 1 mg. So, I think that has also been a factor in the confusion. Can anyone address this?