I have learnt a lot in this forum during past 2 years and also have been busy reading a lot and self testing the effect of some vitamins on the INR
According to many Articles on the Internet on medical sites and others, the one concern about Warfarin is that tends to produce Calcification according to those who study this issues....
There are 3 Types of Vitamin K:
K1 goes to liver and comes from Green Vegetables, works on INR 100% so Greens like Broccoli, you can eat and should eat, BUT monitor its effect on you, we are all different
K2 is produced by bacteria in the digestive systems and does NOT go to Liver; Functions ?, MOVES Calcium to where it belongs, bones and teeth.
K3 dont know much about it, nor is a concern for us on Warfarin
I had an AVR on Nov-2015 and 3 months after started re-introducing all my vitamins and supplements, and although WAS told not to use Tummeric i did try it 4 months ago and INDEED Tumeric is Dangerous for INR as Strongly Interacts with Warfarin boosting its effect, my INR went from Average 2.5 to 5.2 in no time; so will never use it again
Coming back to K2
3 months after the AVR , i started taking 100 mcg ( micro grams ) of K2 and it DOES nothing to change my INR.
So, IF it is true that K2 helps fight the ill effects from Warfanin on Calcification THEN all will be fine
I am one of those people that never loved vegies, but it is possible to Eat Fermented Items like Natto that have lots of K2, and
also it is said that GOUDA Cheese has it too.
I believe, it is paramount for Warfarin users like me to take at least 100 mcg of K2 a day;
If you want to try it, just do a weekly INR check for 3 weeks and that will tell you,
I have a Coagucheck machine so when i experiment with new supplements or food, i make sure i do one test at home first week and a second test on the lab week after;
As per the value of Supplements, well... everybody is entitled to his opinion, but do a diligent research and the truth always shows.
Best regards,