Essentially all human infants are born with very low blood levels of vitamin K and, since low amounts of vitamin K crosses into breast milk, levels remain low for several weeks after birth in breastfed babies. The purpose of this natural, universal experience of low vitamin K levels in newborns is not known. Has Mother Nature really made a mistake? Or is there a perfectly good reason for it that we just haven’t figured out yet?
Read more here: The Question of Vitamin K for Newborns