HUFFPOST: IMPROVE MOOD AND MEMORY ( 2015 Article )
Probiotics are good bacterias competing against pathogens for the same essential nutrients, leaving less available for the pathogen to utilize. It attacks pathogenic organisms by releasing bacteriocins, killing them directly .
(Bermudez-Brito M, Plaza-Díaz J, Muñoz-Quezada S, Gómez-Llorente C, Gil A, Probiotic Mechanisms of Action. Ann Nutr Metab 2012;61:160-174.)
Interview with doctor Perlmutter shows the direct relantionship of gut and brain and how essencial it’s the consumption of probiotics: