What Is Colostrum?

By Twill Care Editors
Reviewed by Alyssa Quimby, M.D.
January 23, 2024

Colostrum is a breastfed baby’s first food. It’s the fluid that comes out of the breasts when milk production starts. This may begin in the third trimester of pregnancy, or it might not happen until after the baby is born.

Colostrum is sometimes known as liquid gold because it’s yellowish-white, thick, and rich in nutrients and antibodies. It’s good for a baby’s immune and digestive systems.

A baby gets colostrum in the first 2–5 days after birth. Then, the milk will gradually change and mature. Breast milk adapts to a baby’s needs at each age, which is amazing!

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