2 doctors weighed in:

What causes vitamin K deficiency in a baby?

2 doctors weighed in
Dr. James Ferguson
Pediatrics
1 doctor agrees

In brief: Diet/ gut germs

Vitamins are something we need we can't make ourselves & for vitamin k there is a special step.
Intestinal bacteria help convert ingested k precursors to the active form we need. Since newborns have no gut germs at the start, it takes a while to start the process. That is why babies get a v k shot at birth to bridge the ~ 8 days it takes for the process to kick in.

In brief: Diet/ gut germs

Vitamins are something we need we can't make ourselves & for vitamin k there is a special step.
Intestinal bacteria help convert ingested k precursors to the active form we need. Since newborns have no gut germs at the start, it takes a while to start the process. That is why babies get a v k shot at birth to bridge the ~ 8 days it takes for the process to kick in.
Dr. James Ferguson
Dr. James Ferguson
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