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I have been looking at your amazing website. I just want to know - I normally have a glass of hot water and lemon juice in the morning. Would this affect my INR level, since I take my warfarin the night before?
This should not be a problem, especially if it is something you do on a consistent basis. Lemon juice contains no measurable Vitamin K.
Thanks for writing,
Timothy S. Harlan, MD, FACP