A few words on probiotic bacteria: The body needs beneficial bacteria for digestive system health. Bifidobacteria are an important component of the intestinal microflora. As we age, the numbers of Bifidobacteria may be reduced. Other lifestyle factors, such as diet and stress, may also affect the composition of the microflora. Why take probiotics? When taken daily, this product helps maintain digestive health with active probiotic bacteria. What are probiotics? Simply put, probiotics are bacteria that help maintain a healthy digestive system. Probiotics contribute to a healthy microflora and support system function. This product contains 4 strains of natural beneficial bacteria: Bifidobacterium infantis, Bifidobacterium lactis, Bifidobacterium longum, Bifidobacterium bifidum. When taken daily, this product will help support and maintain a healthy digestive system.