MegaPre™ is a cutting-edge Precision Prebiotic™ supplement made up of clinically-tested, non-digestible oligosaccharides that can increase microbial diversity and selectively feed beneficial, keystone bacteria like Akkermansia muciniphila, Faecalibacterium prausnitzii, and Bifidobacteria.Prebiotics are non-digestible fibers that feed the bacteria living in your gut. Keystone bacteria like bacterium Faecalibacterium prausnitzii, Akkermansia muciniphila, and Bifidobacteria are very important for human health, but their populations can be easily diminished by stress, diet, glyphosate, and other factors.