Yorlik, sorry for my late reply to you. Yes, I am taking Warfarin (Coumadin). Because I'm a high risk for a stroke (Atrial fib 24/7 & mechanical valve & slightly damaged mitral vale) my INR has to be between 2.5 and 3.5. I try to keep my INR around the 3.5 at all times. I never restricted my diet (no meat, no gluten, but LOTS of veggies and fish a few times a week). I'm now taking warfarin 4.5 mg daily. I assume you are on a blood thinner as well. I'm interested to hear how you are handling this.
Take care, be well!