Probiotics are classically defined as "a preparation or product containing sufficient numbers of defined viable microorganisms that alter the microbiota (usually by colonization) in a host compartment and, consequently, exert beneficial effects on the health of that host." In humans, the organ considered to be the most diverse and metabolically active is the gastrointestinal tract. An integral part of an optimally functioning gastrointestinal tract is the microbial community. BioDoph-7 Plus® provides a blend of probiotics and prebiotics, including Bifidobacterium bifidum, Bifidobacterium lactis, Bifidobacterium breve, Lactobacillus paracasei, Lactobacillus plantarum, Lactobacillus salvarius, and Streptococcus thermophilus.