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- Jan 28, 2006
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Type II diabetes has definite linkages to obesity and nutritional factors. In its earlier stages, Type II shows strong response to improved diet and physical fitness.
Not entirely true (my insurance paid for a 3 week course in diabetes and how to control it).
Two things can cause Type II diabetes: your beta cells in the pancreas no longer produce enough insulin, or your body's cells develope a resistance to your own insulin. Both are treatable with meds. The first one, where your pancreas doesn't produce enough insulin doesn't respond to diet or fitness much at all. There's meds that can make them produce more insulin, and this may deteriorate into type I diabetes (insulin dependant) with time.
The second form, where your body's cells develope a resistance responds well to exercise and diet, sometimes to the point you don't need meds anymore.
Neither form's CAUSE has anything to do with obesity or diet. In fact, less than 20% of diabetics are obese. Obesity may cause symptoms to show up earlier in life, thus making one think it's a cause. In one way, it's a benefit, because symptoms show up when you're young enough for your body to repair the damage once you have your sugars under control.
Also, being physically fit does not mean you're not diabetic. Fitness and good diet increase the body's ability to use insulin, and it's estimate that there's roughly 30 million people not beign treated for diabetes because their lifestyle keeps their blood sugar under control. This is one reason older people show symptoms much more than young people. They retire, their physical activity goes way down, and now a condition they'd been controlling their whole life is no longer controlled.