Physiology, Breast Milk

In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan.


The production of breast milk initiates in larger amounts between 2 and 4 days after the birth of the baby and the breastmilk is said to have 'come in'. It is the sole best source of nutrition for an infant, providing an adequate amount of nutrients, growth factors, and antibodies required for the nourishment of the baby. Breast milk should be exclusively used for nutrition until 6 months of age after which breastmilk should be used in addition to complementary foods for at least 12 months of age.

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  • Study Guide