Polyflora is especially designed to deliver therapeutic levels of blood type specific probiotics (bacteria) and and growth media (prebiotics). Especially made different, and special, for each blood types, best digestive health. Consumption of lactic acid bacteria, or food cultured or fermented with these friendly microorganisms, does extend life in animal experiments, and drastically reduces a wide range of intestinal metabolites, such as indoles, poly-amines, cresols, nitrates/nitrites, and carcinogens, which we now know are counterproductive to optimum health.
Even using strains of friendly bacteria that have a great ability to survive digestion and colonize your digestive tract, there is a tendency for a gradual decline in the quantity of bacteria over time. This decline is substantially worsened by stress, poor dietary choices, antibiotics, and other drugs.