Prebiotics are fibers which cannot be absorbed or broken down by the body and therefore serve as a great food source for probiotics, in particular the Bifidobacteria genus, to increase in numbers. Prebiotics by nature do not stimulate the growth of bad bacteria or other pathogens; the official definition of prebiotics is: “non-digestible food ingredients that beneficially affect the host by selectively stimulating the growth and/or activity of one or a limited number of bacteria in the colon, which can improve host health.”