| Statement | Evidentiary support | Expert agreement |
| With respect to carcinogenesis, ‘dysbiosis’ should be considered a persistent departure of the host microbiome from the health-associated, homeostatic state, towards a cancer promoting and/or sustaining phenotype. | Weak evidence from human studies (9) | Agree (10) |
| At the present time, there is no accepted quantitative definition of a ‘normal’ microbiome. | Strong evidence from human studies (7) | Agree (8) |
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