What is colostrum? Colostrum is the milky fluid produced by mammals within the first few days after giving birth. This secretion of colostrum does not last for long; rather, it is created for the newborn to give it vital nutrients, antibodies, and other factors it needs right after birth. This includes proteins, carbohydrates, fat, vitamins, minerals, and immunoglobulin's. Immunoglobulin's (a, d, e, g and m) are the most abundant of the immune factors found in colostrum. Their biological functions include helping to support detoxification, and promote immune function in the lymph and circulatory system. So what makes colostrum special for adult individuals? Hundreds of years of use and many clinical studies have demonstrated that colostrum is safe and effective for a variety of applications, including supporting immune function. Immunoglobulin's are present in colostrum at concentrations approximately 100 times higher than dairy milk and Genceutics naturals U.S. Grade a colostrum contains a minimum of 35% immunoglobulin's, which is 1/3 higher than typical colostrum products. This is accomplished by immunizing pregnant cows against specific pathogens, resulting in increased specific colostrum antibody titers.