ABSTRACT
Contents 21.1 Introduction..................................................................................................................592 21.2 History of Probiotics .....................................................................................................592 21.3 What are the Findings? .................................................................................................593 21.4 Dysbiosis .......................................................................................................................593 21.5 From Microbiota to Probiotics ......................................................................................594 21.6 Probiotic Selection ........................................................................................................594 21.7 Probiotic Organisms .....................................................................................................594 21.8 Safety ............................................................................................................................594 21.9 Quantities .....................................................................................................................595 21.10 Probiotic Mechanisms ...................................................................................................595 21.11 Clinical Evidence ..........................................................................................................595
