Skip to Content
Colostrum is a sticky, thick, yellowish liquid produced by a
woman's breasts toward the end of pregnancy and during the first few days after
delivery of her baby. Colostrum contains protein, minerals, and vitamins as
well as valuable antibodies, which help protect the baby against
Women who breastfeed transfer these important nutrients to their
newborns. Colostrum is particularly suited to a newborn's needs and provides
the ideal nutrition. Its yellow tint comes from higher levels of carotene, a
form of vitamin A. Colostrum also may act as a laxative to help the infant pass
the first few bowel movements, which are a dark green substance called
After a few days, a woman's breasts start supplying the baby with
transitional milk as breastfeeding becomes established, followed by mature
milk at about 10 to 15 days after delivery.
Current as of:
May 30, 2016
Sarah Marshall, MD - Family Medicine & Adam Husney, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology
To learn more about Healthwise, visit Healthwise.org.
© 1995-2016 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
© Copyright 2017 Rush Copley Medical Center • 2000 Ogden Avenue; Aurora, IL 60504
Main: 630-978-6200 • Physician Referral & Information: 630-978-6700 or 866-4COPLEY (866-426-7539)