Thin diabetes (type 1 diabetes mellitus) results from a shortage of insulin. In contrast, people with fat diabetes (type 2 diabetes mellitus) usually have abnormally large amounts of insulin in their bloodstream. Their high blood sugar is not due to a shortage of insulin. It is due to insulin resistance.
What causes type 2 diabetes?
Fat diabetes is not truly a disease. It is actually a defense mechanism. The disease is overnutrition. If you have fat diabetes, it means that you are a naturally thin person. Your body is resisting the effects of insulin to keep the fat from your food from being stored in your fat cells. If you have fat diabetes, it means that your body is willing to sacrifice everything (your eyesight, your feet, your kidneys, or even your life) to keep you from gaining more weight.
The solution to this problem is simple. Eat carbohydrates, not fat. The more carbohydrate you eat, the more sensitive your body becomes to insulin. The more fat you eat, the more resistant you become to insulin. This relationship between fat, carbohydrate, and insulin sensitivity has been clearly understood since the 1930s.