I take one aspirin a day, full strength ones too.  And I also take aspirin for those little aches and pains.  Been doing it for years, along with my BP meds (old age you know).  I have always been a fast clotter, and the aspirin doesn't seem to have affected that one bit.  I tried fish oil pills, but when I got sweaty (I was still working for a living then) I started to smell like a fish market, and no one would have coffee with me anymore, so I stopped them.  Tried garlic pills, same thing...
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OBG