Inclusion Criteria:  Viome customer GI test collected at home using Viome test kit US citizen 18+ years old Is not participating in any other Viome study Must have answered the following on-boarding question with the indicated answer:  "Do you or did you ever have diabetes or prediabetes?"  Signed and dated informed consent prior to any trial-specific procedures are performed Able to speak and read English Willing and able to follow the trial instructions  Exclusion Criteria:  Unable/unwilling to complete the informed consent form and the questionnaires