Effectiveness of the Brazilian Diabetes Prevention Program

This trial is testing whether an online Brazilian Diabetes Prevention Program can help people with prediabetes make lifestyle changes to reduce their risk of developing type 2 diabetes. **You may be eligible if...** - You are 18 or older with a BMI between 25 and 34.9 - You have been diagnosed with prediabetes within the last 3 months (HbA1c 5.7–6.4%, or glucose 140–199 mg/dL on a 2-hour test) - You have a smartphone, tablet, or computer with internet access - You have not had nutritional counseling or supervised fitness training in the past 6 months - You live within 60 minutes of the research center **You may NOT be eligible if...** - You already have a diagnosis of type 2 diabetes - You have serious health conditions that limit your life expectancy or ability to exercise (kidney disease, pulmonary disease, heart disease requiring secondary prevention, etc.) - You have lost more than 10% of your body weight in the past 6 months - You have uncontrolled high blood pressure or polycystic ovary syndrome Talk to your doctor to see if this trial is right for you.