Blood test may help some diabetes patients ditch mealtime insulin

This study tested a personalized approach to see if some people with type 2 diabetes who take multiple daily insulin injections could safely stop their mealtime insulin. 239 participants wore a continuous glucose monitor and had blood tests to measure C-peptide (a marker of natural insulin production) and GAD antibodies. Those with sufficient natural insulin production stopped mealtime insulin and switched to other diabetes medications if needed. After 6 months, researchers checked blood sugar control, safety, and quality of life.