Diabetic keto-acidosis IS dangerous.....but the ketosis of a low-carb diet is NOT.
When a diabetic's pancreas is putting out NO insulin and the person is not taking insulin....any carbs they eat are trapped in the blood and cannot get out into the cells for nourishment....so the cells are literally starving. Insulin facilitates getting the sugar from the blood to the cells.
On the Atkins diet, you are actually getting adequate carbs AND the non-diabetic, or diabetic taking insulin.....has no problem with getting carbs/sugar to the cells and no problem with starving the cells/body.
But the carefully limited net carbs puts the body into a fat-burning mode rather than a carb-burning mode....not to mention, a muscle-sparing mode....which is actually quite good for you.
The body stores about 2-3 days worth of carbs as glycogen. Once those stores are burned off......the ketosis kicks in....usually resulting in significant decrease in appetite and cravings, and also an increase in energy. It can be a bit tough the first 2-3 days as the body burns up the glycogen stores....but after that, it gets much easier.
deena
Oh...forgot to add....you can buy ketone sticks to test your urine with in most drug stores.