Table 1.

Inclusion and exclusion criteria used in the article selection.

Inclusion Criteria	Exclusion Criteria
Randomized controlled studies Studies on healthy adult athletes Studies that evaluated probiotics’ effects on performance and/or on performance-related physiological parameters Studies based on probiotic supplementation as an intervention Studies reporting the type and dose of probiotic supplementation	Studies on animals Studies on non-healthy individuals Studies on non-physically active individuals Studies performed on children Studies not reporting supplementation details