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colostrum

Colostrum, also known as “first milk”, is the first form of lacteal secretion produced by the mammary glands before the production of milk. Colostrum, in humans, is produced in the late stages of pregnancy and contains antibodies to protect the newborn from disease. Colostrum is very rich in nutrients, such as proteins, antibodies, growth factors, and vitamin A, but contains lower amounts of carbohydrates, lipids, and potassium compared to normal milk. The antibodies in colostrum provide passive immunity, while growth factors stimulate further development of the gut.

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