Hello Elizabeth,
Well, the brand you have bought certainly seems to cover all bases in it's claims. While that particular brand is not on Jackie's 'approved' nattokinase list, that could be because it wasn't tested at all.
Like you, I had also bought nattokinase capsules at a bulk discount price and my brand made the same claims as yours. Unfortunately they were not on the approved list either, so I returned them for a refund and got another (more expensive) brand that was on the list.
Other folk from this BB who use the actual natto food will be able to answer your query about that but I can tell you that I've been taking nattokinase capsules for about 8 months, instead of warfarin/coumadin.
I have permanent afib and am still here, so either they're working or I've been very lucky!
I have to admit I feel safer, knowing I'm now taking an approved brand.
You can find the list of approved brands by using the 'search' function in the green bar at the top of this page. Click on the word 'search' and when the white box comes up, type in: nattokinase update, and you'll find Jackie's post.
best wishes,
Emmie