In which diseases/disorders is it not a good idea to eat foods high in vitamin k?

Only if on coumadin (warfarin): Vitamin k interferes with the actions of coumadin, (warfarin) but that it a big reason i don't like coumadin, (warfarin) as people on it suffer from lack of vit k. It makes more sense to take a steady amount of k-rich foods & adjust Coumadin (warfarin) dose accordingly. Some say to avoid k if you have g-6-pd deficiency, are on dialysis or have cirrhosis, but foods high in k should be fine; they just should not supplement with it.