Colostrum is the primary milk mammals produce midway through pregnancy and later during lactation. It is a natural fluid that contains important proteins and growth factors that support the immune system, known as immunoglobulins. They act as a natural antimicrobial agents that actively stimulates the immune system. IMMUNEBODY™ Colostrum Chewables provides 1,000 mg of colostrum per serving and they are great for on-the-go!