Infants should be supplemented with vitamin D as early as possible after birth, which can be supplemented until puberty, and vitamin A can not be supplemented if it is not deficient.
It is recommended to give the right amount of vitamin D3 to infants after birth to help promote the development of infant’s bones, and at the same time can prevent rickets, can be given to infants to eat until puberty; if infants are not deficient in vitamin A, there is no need for additional supplementation of vitamin AD, supplementation of vitamin D3 alone can be.
If the infant has vitamin A deficiency, vitamin AD can be used as prescribed by the doctor.
Parents who give their infants vitamin AD or vitamin D3 supplements need to take them under a doctor’s supervision, and should not use them on their own.