thumb|On the left is breast milk of the human expressed on day 4 of lactation, and on the right is [[breast milk expressed on day 8. Colostrum gives the milk a yellowish hue.]] thumb|Bovine colostrum (beestings) next to spray-dried colostrum powder
Colostrum is the yellowish fluid that mammals, including humans, produce in the first days after giving birth, before transitioning to regular milk. It contains important nutrients and antibodies that help newborns develop immunity and get the nutrition they need in their earliest days of life.
AI-generated from the Wikipedia summary — may contain errors.
thumb|On the left is breast milk of the human expressed on day 4 of lactation, and on the right is [[breast milk expressed on day 8. Colostrum gives the milk a yellowish hue.]] thumb|Bovine colostrum (beestings) next to spray-dried colostrum powder
Colostrum (, of unknown origin), also known as foremilk, is the first form of milk produced by the mammary glands of humans and other mammals immediately following delivery of the newborn. Animal colostrum may be called beestings, the traditional word from Old English dialects. Most species will begin to generate colostrum just prior to giving birth. Colostrum contains antibodies to protect the newborn against disease and infection, and immune and growth factors and other bioactives. The bioactives found in colostrum are beneficial for a newborn's health, growth and vitality. Colostrum strengthens a baby's immune system.
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