Effect of Artificial Sweetener (AFS) on Glucose Metabolism in Patients with Type 1 Diabetes (T1D)

This study is investigating how artificial sweeteners affect blood sugar control in people with type 1 diabetes (T1D) who use an insulin pump. Researchers want to understand whether consuming artificial sweeteners changes how glucose is processed compared to regular sugar or no sweetener. **You may be eligible if...** - You have been diagnosed with type 1 diabetes - Your most recent HbA1c (a measure of average blood sugar over 3 months) is 8% or below (well-controlled) - You use an insulin pump for diabetes management - You are an adult aged 18–45 with a BMI between 18.5 and 29.9 (normal to borderline overweight) - You are a non-smoker and can communicate in English or French - You can eat chicken and fish (used in the study meals) **You may NOT be eligible if...** - You have any major medical condition other than type 1 diabetes that could affect metabolism - You have an eating disorder, alcohol or substance use disorder, or history of bariatric surgery - You have inflammatory bowel disease or a malabsorption condition - You have impaired taste or smell, are pregnant or breastfeeding, or have food allergies Talk to your doctor to see if this trial is right for you.