I am having 14 mg Acitrom daily & INR is 2.1, I have a mechanical valve, in food I am only eating potato, arbi, pulses, mash room, onion, no tomato, no califlour,no bro like, no spinach , no meet hi,in fruits I am having Apple, Chikoo, banana, watermelon , why at 14 mg INR IS SO LOW, HOW CAN IT BE IMPOVED