This study is for people with type 1 diabetes (T1D), which means they need insulin to control their blood sugar. The study tests if taking a supplement called resveratrol for 12 weeks helps improve certain body functions. One focus is on the endothelin-B receptor (ETBR), a part of the body that can malfunction with T1D. Another focus is on skeletal muscle mitochondrial function, which means how well muscles use energy. The study will use special tools like near infrared spectroscopy (NIRS) to check muscle health without causing pain. The aim is to see if resveratrol, which increases a protein called Sirtuin-1 (Sirt1), can help these functions work better.

• Study lasts 12 weeks with resveratrol or placebo treatment.
• Participants need a clinical diagnosis of T1D.
• Cannot participate if you have certain other health issues, like uncontrolled diabetes or high blood pressure.

If you join, you'll help researchers learn more about improving health in T1D patients. Always talk to your doctor before joining a study.