and it's not even dangerous (at least compared to the alternatives, as far as I am aware of

Actually, I've heard that low-carb diets are criticized for increasing the risk of colon cancer, however the problem (from what I, a non medical professional understand) might have been too little fiber (which you can just add to your diet...).

Also, there's a state called "Atkin's attitude" which basically means your blood sugar can get too low making you really grouchy (hazardous socially, obviously).

Also, a low-carb diet can throw off your ph balance, evidently. I am on a low-carb paleo diet and was told by a doctor to use a teaspoon of apple cider vinegar daily to stop the joint aches I was having that were caused by ph imbalance.

Doing anything with your health is going to be complicated and might be tricky. It's good to get as much knowledge as possible.