Tokyo Central Market is a short drive from me if I want to try natto. But soybeans and I don’t agree so I’ll pass on that idea.
If I get nicked shaving I don’t bleed for long so my K2 can’t be too low. I could see if my neph wants to add K2 to the blood panel, she tests for everything under the sun anyway. But I don’t know if she would want my K2 levels to be high, I’m prone to “venous and arterial thrombosis” thanks to the same syndrome that makes me lose all of my D3 at times. That’s not K2 related, it’s from a loss of anticoagulant clotting factors.
It’s K1, not K2, that helps control blood clotting properly. When we are young, our bodies easily convert K1 to K2, and K1 is pretty abundant in our diet, even present in lettuce. As we age, our bodies are not so good at converting K1 to K2. K2 is like a “boss” directing calcium in the blood. It says “go into the bones”. Without the K2 “boss”, calcium accumulates inside our blood vessels, which is not exactly fun. We get clogged arteries and osteoporosis :(
Ref your “soybeans and I don’t agree” — well, I guess you’re not a cow, lol. Soybeans are cow food. At least in my my book they are.