Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Colostrum
Medically reviewed by Min Clinic Staff | Updated: January 2026
Colostrum: A sticky white or yellow fluid secreted by the breasts during the second half of pregnancy and for a few days after birth, before breast milk comes in. It is high in protective antibodies that boost the newborn's immune system.