Does diet affect the INR/PT reading?
A. Yes. Consuming foods high in Vitamin K will affect your INR/PT reading. Common foods containing vitamin K are leafy greens, broccoli, spinach and canola oil. You should eat approximately the same amount of these daily and your Coumadin dosage will be regulated to account for this. Most importantly, your diet should be consistent. Alert your doctor before you change your diet significantly.
