I don’t think anybody really understands. However, we know that the epidemic in diabetes we see in America, and most of the developed countries today, parallels the epidemic of morbid obesity.
There is good evidence to suggest that when a person’s body weight becomes great, it overwhelms some of the body’s systems. For example, its ability to control glucose. You get inflammation. The body is trying so hard to deal with excess weight that things begin to become unhinged.
There is no question that morbid obesity, diabetes, hypertension, joint problems, other chronic illnesses, and even increased risk of cancer are all associated with a severe overweight state.