Generally not be given because the narrow safety margin between the desired intake level and danger level, we should be very wary of establishing a supplementation during lactation. Parents should never manage their own baby any supplements without your doctor’s prior prescription.
Under medical supervision only thing is advisable to administer vitamin K in the immediate neonatal period for all infants and vitamin D in some circumstances, such as children with dark skin (in which the cutaneous synthesis of vitamin D is less) or with inadequate exposure to sunlight, the children of strict vegetarians, which restrict the intake of foods rich in vitamin D, and preterm infants.