lactobacillus acidophilus + lactobacillus casei + bifidobacterium bifidum

This combination is a multispecies probiotic formulation composed of two *Lactobacillus* species and one *Bifidobacterium* species, designed to support gastrointestinal homeostasis and restore microbial balance. *Lactobacillus acidophilus* and *Lactobacillus casei* are resilient, lactic acid-producing bacteria that primarily colonize the small intestine, where they facilitate carbohydrate fermentation and inhibit the proliferation of pathogenic microorganisms through the production of organic acids and bacteriocins. *Bifidobacterium bifidum* is a key inhabitant of the large intestine, contributing to the maintenance of the mucosal barrier and the synthesis of essential B vitamins. Mechanistically, this combination acts via competitive exclusion for epithelial adhesion sites, nutrient competition, and signaling through pattern recognition receptors like Toll-like receptor 2 (TLR2) to modulate host immune responses and strengthen intestinal tight junctions. It is primarily indicated for the management of antibiotic-associated diarrhea, the alleviation of irritable bowel syndrome (IBS) symptoms, and the general restoration of the gut microbiome following dysbiosis.

Brand names

Acidophilus Casei Bifidum Probiotic BlendTriple Strain ProbioticThree Strain Probiotic

Other names

L. acidophilus + L. casei + B. bifidumlactobacillus acidophilus, lactobacillus casei, and bifidobacterium bifidumLAB probiotic combination