Vitamin K helps your baby’s blood clot and prevents serious bleeding. Babies do not get enough vitamin K naturally from their mother during pregnancy. Breast milk also does not provide babies with enough levels of vitamin K. This can result in vitamin K deficiency in newborns. If your baby has vitamin K deficiency, they are at risk of developing a disease called Vitamin K Deficiency Bleeding, or VKDB. While VKDB is rare, it can be very serious as it can cause babies to bleed excessively and may cause them to bleed into their brain. This condition may result in brain damage and even death.