If you can be consistent in your intake of vitamin K, the coumadin (
warfarin) does can be set to work with that diet.
Given you have lone or intermittent AFib it may be you'll get a lower range, I don't know, but that would be good. Some, mostly younger I think, may get by taking just an aspirin a day. The step up to an anticoagulant is driven by the number of risk factors for clot formation. AFib is a big count, age is another I think.