In those individuals that presented type 2 DM remission, there was a significant increase in the genus Roseburia intestinalis, from phylum F. This increase was also described in other recent studies, regardless of the surgical procedure, associated with a beneficial effect on improved insulin sensitivity, corroborating the hypothesis that alterations in the composition of the GM after BS may be associated with remission of DM. Here, INS is linked to diabetes mellitus.