I am also on 15mg daily, so you are not alone. I vary between 15mg & 15.5mg. My range is 2.5-3.5, but they shoot for 3.0-3.5. I eat brocolli daily, and I assume that is the reason for the high dosing. I have also been on Coumadin for 29 years, so maybe that's a factor. My Dr. says he has never...