A nutritional supplement comprised of prebiotic and probiotic ingredients, with potential immunomodulating and gastrointestinal (GI) flora-restoring activity. Upon ingestion of the synbiotic supplement, the prebiotics and probiotics work synergistically in the GI tract, thereby modulating the GI flora ecosystem and may improve the functions of the intestinal barrier. In addition, synbiotics may have a beneficial effect on the immune system. Check for active clinical trials using this agent. (NCI Thesaurus)