> Pistachio nuts are a good source of lutein often favoured by those suffering
> some forms of macular degeneration. Green leafy vegetables such as spinach
> are also a good source of Lutein. The problem with the green leafy
> vegetables is that often they upset the delicate balance of the INR level so
> well known to those on warfarin or coumadin.
> Is it Lutein whether from spinach or from pistachio nuts that affects the
> INR? OR can one eat pistachio nuts without affecting the level of INR?. If
> this was the case it would be some chemical principle other than Lutein in
> the spinach leaf that affects INR levels.
> Possibly this enquiry should be posted on sci.med.nutrition. I would be most
> grateful for any advice.
> Tom
It is the Vitamin K in some green vegetables and especially cruciferous