I think we tend to mix issues up. Personality disorders are a major problem in and of itself. What does it have to do with Warfarin and INR stability. Wouldn't the same affect cancer treatment, diabetes...all chronic ailments?
Wouldn't homelessness cause the same issues?
If you can drink a 12 pack/day everyday you have issues other than INR. If you were Kelce and Taylor and you did a 12 pack after a game oh well..take your pills test at the end of the week.
Like the folks here say - dose the diet. Do what you do