Type 2 Diabetes - Diabetes occurs when the body cannot turn food into glucose to produce growth and energy. Symptoms include increased thirst and need to urinate, weight loss, blurred vision, hunger, fatigue, frequent infections, and slow healing of wounds or sores. Of the more than 16 million Americans with diabetes, about 95% have type 2 diabetes. People who are overweight or obese -- over than 40 years old, who have high blood pressure, or have a family history of diabetes are at greatest risk of developing type 2 diabetes. Heart and blood vessel diseases develop in up to 75% of people with diabetes. Diabetes can also lead to stroke, kidney failure, and other problems.