Background: Type 1 diabetes mellitus (T1DM) is a chronic disease of clinical importance, whose prevalence has increased in Brazil and worldwide. Among the possible factors involved in the genesis and control of the disease, the intestinal microbiota (IM) deserves to be highlighted, but studies that report differences between the IM of patients with T1DM and those who are healthy are still contradictory and scarce.
Objective: The objective of this paper was to evaluate the IM profile of T1DM and healthy patients, in order to verify possible differences and to evaluate the possibility of the influence of IM on glycemic control in T1DM.