Wow!! This one is news to me. I thought pretty much everyone with type-2 diabetes was overweight, and usually very overweight. Myth: If you are overweight or obese, you will eventually develop type 2 diabetes. Fact: Being overweight is a risk factor for developing this disease, but other risk factors such as family history, ethnicity and age also play a role. Unfortunately, too many people disregard the other risk factors for diabetes and think that weight is the only risk factor for type 2 diabetes. Most overweight people never develop type 2 diabetes, and many people with type 2 diabetes are at a normal weight or only moderately overweight.