Did I get diabetes because I ate too many sweets? NO.
Did I get diabetes because I ate too much fatty food? NO.
Did I get diabetes because I didn't exercise enough? NO.
Did I get diabetes because I'm too fat? NO.
Don't assume you did something wrong to get diabetes. The vast majority of people who get diabetes do so because they are GENETICALLY PREDISPOSED to the disease. There is usually a family history of either diabetes or of related diseases such as high blood pressure, hardening of the arteries, and lipid (blood fat) abnormality. Even if no such family history is present, it was still in your genes to get it. It is likely that diabetes per se is not inherited, but the tendency to develop it is, perhaps via insulin resistance. This means that your parents could have had the tendency and passed it on to you, without ever developing the disease themselves.
Certain things you do can bring out diabetes if the genetic tendency is present. Being overweight is probably the most important. At least 80% of Type 2 diabetics are overweight, and weight loss will go far to correct their glucose levels. Eating a high-fat diet will also predispose a person to Type 2 diabetes, even those who are not overweight. Eating a diet that is high in carbohydrates (sweets) but not high in fat is unlikely to cause the development of diabetes.
With Type 1 diabetes, there are no predisposing causes that can be avoided. Although a genetic predisposition is necessary, a family history is present in only a small minority of people. There is a suggestion that as an infant, early feeding with cow's milk may slightly increase ones risk of developing Type 1 diabetes later. It is quite clear that genetics, viruses, and other unknown factors in the environment must all be present in order to mount an attack on the pancreas beta cells to result in Type 1 diabetes.
Remember, Diabetes is not your fault..........It is however, your responsibility.