Table 1.

Definitions of terms related to the microbiota.

Term	Definition
Dysbiosis	Imbalance between health and disease-promoting microorganisms
Probiotics	Microorganisms which when consumed in adequate amounts confer a health benefit to the host
Prebiotics	Substrates that are selectively used by host microorganisms to produce a health benefit
Synbiotics	A combination of a prebiotic and a probiotic