Final answer:
The nurse should inform the parents that breast milk uniquely adapts to the baby's changing nutritional needs throughout the breastfeeding period, evolving from colostrum to mature milk, and the supply adjusts to baby's demand.
Step-by-step explanation:
When providing information regarding breastfeeding to the parents of a newborn, the nurse should state: "Breast milk adapts to the baby's changing nutritional needs." This is because breast milk is an incredibly dynamic fluid; its composition changes to meet the development and growth needs of the infant. Initially, colostrum is produced, which is rich in immunoglobulins, providing vital immune support to the newborn. As the breastfeeding journey continues, the milk evolves from colostrum to transitional milk, and then to mature milk, which itself varies in composition from the beginning of the feeding (foremilk) to satisfy thirst to the end (hindmilk) to satisfy hunger.
The lactating mother's milk supply naturally adjusts in volume in response to the baby's demand due to a positive feedback mechanism - more sucking leads to more milk production. If the baby experiences growth spurts, the mother's body will respond accordingly, further showcasing the adaptability of breast milk. Hence, despite common misconceptions, supplementing with formula is not always recommended, breastfeeding remains effective well beyond the first month, and burping may still be needed to help the baby digest the milk comfortably.