Intervention on New Onset-T1D Children

Who May Qualify: - Clinical diagnosis of insulin-dependent type 1 diabetes - Positive for at least one islet autoantibody (ICA, GADA, IA-2, IAA, ZnT8) - No more than 3 months from first insulin injection - ≥ 7 to \< 18 year old Who Should NOT Join This Trial: - Diagnosed with celiac disease, IBD or other intestinal inflammatory pathologies - Diagnosed with tuberculosis, hepatitis B or C, HIV, or active EBV or CMV infection; significant cardiac disease; conditions associated with immune dysfunction or hematologic dyscrasia (including malignancy, lymphopenia, thrombocytopenia, or anemia); liver or renal dysfunction. - Ongoing use of systemic medications other than insulin. - Recent administration of antibiotics (1 months prior to treatment) - Deemed unlikely or unable to comply with the protocol or have any complicating medical issues or abnormal clinical laboratory results that interfere with study conduct or cause increased risk. Always talk to your doctor about whether this trial is right for you.