An article on the Strauss Group website describes probiotic yogurts developed to help regulate digestion and improve symptoms of IBS. The yogurts contain Bifidus Actiregularis bacteria and bio-bacteria. Studies focused on the survival of the bacterium in the gastrointestinal tract and its functionality cover “digestive comfort” a term used to define a well-functioning digestive system without gas, bloating, constipation, etc. The studies specifically relate to the elderly and to women. Probiotics have been shown to help improve brain activity and may be helpful for the nervous system and PD patients. Studies suggest that probiotics may help PD patients by decreasing pro-inflammatory cytokines, oxidative stress, and potentially pathogenic bacterial overgrowth.