What is the age limit for transitioning from donor breast milk to formula?

The recommended age limit for transitioning from donor breast milk to formula is typically around one week before discharge. This guideline is particularly pertinent for preterm infants or those who have specific medical needs that may require breast milk for optimal nutrition and growth. The rationale behind this timing relates to the nutritional composition of breast milk, which offers immunological benefits and supports development in vulnerable infants. Transitioning to formula too early may compromise these benefits, especially in the crucial days leading up to discharge when the infant is still adapting to feeding.

In the context of the other options, transitioning two weeks or one month before discharge may not provide sufficient time for the infant to receive the optimal nutrition that breast milk offers in the critical phase immediately preceding discharge. Waiting until discharge to initiate formula could also hinder the infant's acclimatization to formula feeding, which is best done when the healthcare team can provide guidance and monitor the transition closely. The goal is to ensure that when infants go home, they are already comfortable and thriving on their feeding regimen.