Efficacy and Safety of a Ketogenic Diet in Type 1 Diabetes

This study tests whether a ketogenic (very low-carbohydrate, high-fat) diet is safe and effective for adults with Type 1 diabetes. Researchers want to see how this diet affects blood sugar control compared to standard dietary recommendations. **You may be eligible if...** - You are 18–65 years old with Type 1 diabetes diagnosed more than 1 year ago - Your HbA1c (average blood sugar) is between 7.0% and 9.0% - You use an insulin pump or multiple daily insulin injections - You use a continuous glucose monitor (CGM) and have done so for at least 12 weeks - Your kidney function is adequate **You may NOT be eligible if...** - Your BMI is below 20 or above 34.9 - You have severe stomach emptying problems or have had weight-loss surgery - You have been hospitalized for diabetic emergencies in the last year - You have poorly controlled high blood pressure - You take diabetes medications other than insulin (especially SGLT2 inhibitors) - You exercise more than 3.5 hours per week in structured activity - You are pregnant, breastfeeding, or not using contraception Talk to your doctor to see if this trial is right for you.