Hello, I'm 68 and I just had a CAC test done and the results were 430. So I've been researching using vitamin K2 or MK-7 which is the same thing. There are several doctors on you tube that say K2 will pull the calcium out of your arteries. There have been many studies done that show these results. So I'm going to take 500 mcg's a day or possibly more to see if this can bring my 430 number down. They also say there are no side affects from using K2. So that's good. Good luck.