Milk produced by the mammary glands in late pregnancy and a few days after giving birth (7 days), it is thick, sticky and yellowish, has high concentrations of nutrients (Proteins and Carbohydrates but in small quantities), is easy to digest (Low in Fats), and has a mild laxative effect to encourage passing of the 1st stool (Meconium), it contains antibodies to protect the infant and leukocytes to protect the infant from harmful viruses and bacteria