Is diabetes present only in fat people?

No.: Type II diabetes, or adult onset diabetes, is more common in overweight people. Type I diabetes, or juvenile onset diabetes (or insulin dependent diabetes) can be present no matter how much the person weighs.

Not at all: In fact, many type I diabetics, who don't produce enough insulin are actually normal weighted! Though fat is the scourge of the pancreas and leads to insulin resistance, so you can have rather elevated levels of insulin but still not have it function properly!

No: Underweight or normal weight people can get diabetes. Obesity does increase the risk of diabetes.

No: Diabetics can be thin people

Diabetes: Diabetes is not always present in fat obese people. Usually type two diabetes is associated with obesity and type one diabetes is associated with sin people and usually has an early onset and your teenage years.

Diabetes risks.: Type 2 diabetes, the more common adult onset type, has a 90% concordance within families, which means that 90% of a diabetic's close family members (kids, brothers, sisters) could expect to get diabetes eventually. This is generally the type associated with being overweight, although there are plenty of this diabetics. Weight is not the only causative factor.