In Type I diabetes, your body is either unable to produce the hormone insulin or does not produce enough. If your mother or father has this form of diabetes, you are 15 times more likely to develop it. If you have Type II diabetes, your body doesn't make enough insulin, or doesn't react properly to it. This also runs in the family. If a parent has Type II, you are 3.5 times more likely to develop it.
Obesity dramatically increases the risk of Type II diabetes. Those with a large waist size (over 32 inches for women, 37 inches for men) are at greater risk. A high-fat diet clogs up arteries and makes high blood pressure more likely, which raises the likelihood of diabetes.
Losing weight, eating healthily and taking exercise reduce the risk of Type II diabetes by up to 50 per cent. This can also help control Type I diabetes.