Continuous Glucose Monitoring Alerts, Accuracy, and Patient Outcomes in Adults With Inherited Metabolic Disorders

Brief Summary

The goal of this clinical trial is to learn if a continuous glucose monitor (CGM) with predictive alerts works better than a CGM with standard alerts to prevent low blood sugar (hypoglycemia) in adults with inherited metabolic disorders (IMDs), such as glycogen storage disorders (GSDs) and congenital hyperinsulinism (CH). The main questions it aims to answer are: Does a CGM with predictive alerts lower the time spent with low blood sugar compared to a CGM with standard alerts? Do participants feel better and behave differently when using a CGM with predictive alerts? How accurate are the two CGM devices in this group of people? Researchers will compare two CGM devices - Dexcom G7 (with predictive and standard alerts) and Dexcom ONE+ (with standard alerts only) - to see if predictive alerts help reduce low blood sugar episodes and improve quality of life. Participants will: Wear each CGM device for 30 days Have a 30-day break between the two devices Check blood sugar levels and record food intake Complete questionnaires about their experience with each device