Promotes Gastrointestinal Health and Balance Gut Bacteria HealthAid ColiProbio helps to supplement your diet by replenishing the ‘friendly’ bacteria, support the immune system and assist in the absorption of nutrients within the gut by providing 30 billion special strains of Lactobacillus and Bifidobacterium (live microorganisms). Research shows these probiotic strains may help reduce pathogenic bacteria and yeasts in your gut and help balance your intestinal PH. Fructo-Oligosaccharides (FOS), a prebiotic, has been added to help support the growth of ‘friendly’ bacteria in the intestinal tract.