Nine adult-specific bacteria at an appropriate strength designed specifically with a higher percentage and concentration of Bifidobacteria for a seniors healthy intestinal flora. Probiotics are the beneficial friendly bacteria that occur throughout the digestive tract. They are absolutely essential for proper digestion, strong immune function, and overall health. Seniors need a large quantity of beneficial bacteria and several varieties of Bifidobacteria for optimum bowel health.This powerful therapeutic formula:- Guarantees twenty four billion viable organisms of beneficial bacteria* - that are absolutely essential for proper digestion, strong immune function and over-all health. (*at time of manufacture)- The specific strains used in Advanced Adults Blend have been specially chosen for their value to seniors health - and have been formulated to the viable count needed to fully support seniors needs.