As science delves deeper into the roles that the intestinal microbiome play, both psychiatry and natural health sciences have quickly applied that research toward improved neurological health. The gut-brain and brain-gut communication system is vitally important to overall neurological functions including mood, as well as the brain’s oversight on the body’s self-regulatory activities that include immunological and endocrine health. Supporting the probiotic species that are necessary for normal neurological balance via those species necessary food supply can encourage their life activities that include taking up residency niches in the human gastrointestinal tract. Their subsequent life activities provide neurological signals and molecular messengers that the body requires for its normal neurological activities.