Colostrum Can Colostrum Improve Your Immune System? What is colostrum? Colostrum is vital in the early lives of all mammals.  It is particularly vital for their immune system.   What is colostrum?  It is the “first milk” that a mother mammal produces just prior and after the birth of her baby.  This protein-packed fluid contains immune-building … Continue reading Colostrum and Your Immune System