This symposium includes presentations on how bacteria help the immune system tackle type 1 diabetes, cloaking beta-cells from immune-mediated damage, branched-chain amino acids and diabetes, neural changes that promote obesity and diabetes, and identifying and treating diabetes distress as part of routine type 1 diabetes care. The session begins Friday at 11:30 a.m. PT in Halls GH at the convention center. Watch a livestream or catch the recording on-demand on the virtual platform at ADA2023.org.