How does being obese cause type 2 diabetes in a child?

Insulin resistance: Type 2 diabetes occurs when the Insulin produced by a patient does not do all the work needed to keep blood sugar levels in the normal range. Consider Insulin a taxi that transports glucose to cells. If the taxi, s are moving slow, or the cells are not letting glucose off, the glucose waiting around for transport builds up. Obesity can create Insulin resistance not present at normal weight.

Pancreatic failure: Usually you become diabetic when your pancreas can not overcome the extra work that implies been obese.

Insulin resistance: Obesity puts a strain on the pancreas so that it has to make more Insulin to compensate for the increased demand of obesity. Unfortunately, we're seeing type 2 dm in children even as young as 4 years-old. The pancreas simply poops out and can't keep up with the Insulin demands of the obese body. This is when type 2 dm develops.