Inclusion Criteria:  Age ≥ 18 years.  Exclusion Criteria:  Type 1 diabetes mellitus Unable to participate in or comply with any of the testing modules asked during the study Currently pregnant Prior bariatric surgery Chemotherapy or radiation treatment for cancer in the past year Inflammatory bowel disease Known skin allergy to adhesives and nickel (or other contraindications to continuous glucose monitoring) Currently taking any oral steroids(these medications may impact glucose levels) Antibiotic use in the last 3 months prior to the start of the study or planned use during the duration of the study Non-dietary, supplemental probiotic use either daily or weekly Hospice care End stage renal disease