Otherwise, the administration of microbial metabolites with a predictive function can be tested, such as the treatment with a SCFAs mixture that drove to the reduction of incidence of colitis-derived CRC as well as the decrease of inflammation through the downregulation of the expression of the pro-inflammatory cytokines IL-6, IL-17, and TNF-α in mice [108]. This evidence concerns the gene IL17A and colorectal carcinoma.