Immunoglobulins are also called antibodies; it is a huge part of your immune system. It is released from the lymphatic system through b lymphocytes. For your immune health, there are five immunoglobulins produced by your body. The most essential antibody in your body is immunoglobulin G. It makes 75 to 80 percent antibodies in your blood. It has properties to bind antigens such as bacteria, viruses, toxins, and fungi. Through this system, your immune cells will be protected from these pathogens.