Im not an expert but I dont think thats the way it works. If that were of any concern they would likely warn people if it were even available at all.I just wonder if taking vit k and natto might cause u to strip too much out of the arteries etc…? I wonder because if i take straight up natto more than a few times per week i get nosebleeds…. No idea why but i dont want to be taking a bunch of stuff that may dissolve a bunch of stuff and eventually cause me to either bleed out from not knowing i had something in there or it causing something to get dislodged and then cause other issues…
DC/Dante swears by Natto as have a few doctors I know for what its worth.
I would personally be more concerned about the calcification of arteries before I would be concerned K2/Natto may work too well. Just my 2 cents.