Introduction . Multiple neurological disorders including ASD, MS, and PD are known to be influenced by a combination of genetic, neurobiological, immunological and environmental factors. More recently, one of the environmental factors found to be involved in these diseases is the microbiota 1 , 2 , 3 , 4 , 5 . Many individuals that have these diseases are comorbid for GI symptoms such as diarrhea, constipation, abdominal pain, reflux and bloating which often correlates with t...