I agree babies are born with lower amounts and there are most likely many reasons why- here is a reference on the subject.
Semin Thromb Hemost. 1995;21(4):357-63.
Observations on vitamin K deficiency in the fetus and newborn: has nature made a mistake?
Israels LG, Israels ED.
Department of Medicine, University of Manitoba, Manitoba Institute of Cell
Biology, Winnipeg, Canada.
---------------------------------------------------------------------
Studies on adults show that we do not even eat the RDA of vitamin K. The RDA for all women is 90 mcg/day. The amount of vitamin K associated with a decreased risk of hip fracture in the Framingham Heart Study about 250 mcg/day.Other studies on aging also support a higher amount in order to be protective of bone and vessel health. If our diet is inadequate to begin with then how are we providing adequate vitamin K to our babies? We don't even get 90mcg/day and the RDA may change in response to research to be 250mcg/day or more.
In contrast to the baby before birth where the placenta limits intake, colostrum and breastmilk provide vitamin K in increasing amounts dependent on MOM's dietary intake- studies that supplemented moms with vitamin K increased the amount of vitamin K in breastmilk - . If you are not going to give your baby supplemental vitamin K then I would recommend that you get atleast the RDA and actually I would probably say far more than the RDA something closer to 3-4 servings of green veggies/day (cooked or raw) this would just be a guess because there are no studies that provide the info on optimal amount for breastfeeding-
: We are not born deficient. There is a reason our blood needs to be thinner and less likely to clot in the early days, even if we don't know what it is.
