Vitamin K shot is injected to almost all babies within hours of birth to support newborn’s blood clotting abilities in order to prevent a very rare, but dangerous vitamin K deficiency bleeding — VKDB

➜ Newborn babies are born with low levels of vitamin K. Their natural prothrombin (clotting factor) reach normal levels between days 5 and 7, peaking around day 8 – this is related to the buildup of bacteria in the digestive tract to produce vitamin K.

➜ Colostrum and breast milk contain small amounts of natural vitamin K, while formula has relatively high levels of vitamin K1.