how much vitamin K is okay for patients taking warfarin (Coumadin, etc)

There is still confusion about how much vitamin K is okay for patients taking warfarin (Coumadin, etc).

Warfarin is a blood thinner. Vitamin K acts opposite of warfarin and is sometimes used to reverse warfarin's effects.

Vitamin K is available as an Rx tab (phytonadione)...in multivits and supplements...and in foods (spinach, broccoli, mayonnaise, etc).

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