Last revision: 01-21-23 By Eugene L. Heyden, RN “Immunoglobins are protein molecules that function as antibodies against many pathogenic as well as potential pathogenic microorganisms.”  ~Rountree, 2002 “SBI is uniquely composed of immunoglobulins which remain biologically active throughout the GI tract and have affinity for common intestinal antigens associated with GI inflammation.”  ~Detzel et al.,…