Diabetes Symptom

People with pre-diabetes, a state between “normal” and “diabetes,” are at risk for developing diabetes, heart attacks, and strokes. However, studies suggest that weight loss and increased physical activity can prevent or delay diabetes. There are two forms of pre-diabetes.
Impaired Fasting Glucose
A person has impaired fasting glucose (IFG) when fasting plasma glucose is 100 to 125 mg/dL. This level is higher than normal but less than the level indicating a diagnosis of diabetes.
Impaired Glucose Tolerance
Impaired glucose tolerance (IGT) means that blood glucose during the oral glucose tolerance test is higher than normal but not high enough for a diagnosis of diabetes. IGT is diagnosed when the glucose level is 140 to 199 mg/dL 2 hours after a person is given a drink containing 75 grams of glucose.

In a cross-section of American adults age 40 to 74, tested during the period 1988 to 1994, 20.1 million (21.1 percent) had pre-diabetes. Of those, 9.6 million (10.1 percent) had IFG and 14.2 million (14.9 percent) had IGT.