Research suggests that metabolites derived from the gut microbiota may play a role in modulating the response to cancer immunotherapy. Studies are exploring the complex interactions between the gut microbiome, microbial metabolites, and the tumor microenvironment, with potential implications for various types of cancer, including colorectal cancer and melanoma. The relationship between gut microbiota and cancer immunotherapy response is being investigated, with findings indicating that gut microbiota may shape cancer immunotherapy responses.