What is colostrum?

Written by Yuppo Lab Experts.

Updated 27 October 2026

Colostrum is the thick, yellowish first milk produced in the first few days after birth. It comes in small amounts that match a newborn's tiny stomach and is rich in antibodies and other protective factors.

Key takeaways

  • Small amounts are normal and enough for a healthy newborn.
  • Colostrum gradually changes into transitional and then mature milk over about the first two weeks.
  • Frequent feeding helps the milk supply increase.

What you can do

  • Feed your baby early and often in the first days.
  • Ask your midwife about hand expressing colostrum if your baby is sleepy or unwell.

Frequently asked questions

Its colour comes partly from beta-carotene; it is normal and does not mean anything is wrong.

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