July 4, 2013
If you're taking large doses of Vitamin D, as I'm doing, to raise blood levels to the recommended 50-60 range, then the body needs more K2 to move calcium around efficiently, strengthening bones and improving heart function, according to Dr. Kate Rheaume-Bleue, author of "Vitamin K2 and the Calcium Paradox,." It's suggested that for every 1000 IUs of Vitamin D taken, 100 mcgs of K2 should be taken., The Grassroots Health site has a chart showing the amount of D necessary to raise blood serum levels to higher levels. For example, my ng/ml level is 30. To raise it to 50, which is my goal, the chart recommends taking an additional 3000 IUs of D per day, for a person weighing 150 Ibs. I take the Jarrow Formulas K2 because of the company's reputation, the Natto base, which is said to be the richest food source of the K-7 component, and because of the convenient 90 mcg size. Another use of the supplement is to add it to homemade sauerkraut, which naturally produces about 50 mcgs of K2. Adding the supplement at the beginning of the fermentation process is said to increase the K2 content ten-fold. Factoring this in to my calculations of how much MK-7 to add to complement taking an additional 3000 IUs of D, I've determined that two caps, 180 mcgs of the MK-7. would be enough.