According to a study published online in JAMA, nearly 50% of adults living in the U.S. have diabetes or pre-diabetes. Diabetes is a condition where blood sugar is elevated and may reflect a lack of production of insulin to lower blood sugar - classified as Type 1, or insulin resistance, classified as Type 2. Diabetes is often a result of obesity, poor diet or lack of exercise. Nevertheless, there are a number of myths surrounding the disease. Here we debunk 7 of them.