|How much is this banshee gonna need?
The current RDA is 65 µg (micrograms) per day for adult females and 80 µg per day for adult males, but this has been debated in recent studies.
The AI for vitamin K is 90-120 micrograms.
No tolerable upper level (UL) of intake has been established for vitamin K.
A recent survey conducted stated that if you're between the ages of 18 and 44, there's a good chance you didn't get enough vitamin K today—or any other day. This study suggests that the current RDA may not be sufficient for maximizing vitamin K's function in bones. So, exactly how much vitamin K is needed to optimize this function is still being established.