[jdege]

Eating too much protein, in the absence of sufficient fat or carbs, causes real problems.

http://en.wikipedia.org/wiki/Rabbit_starvation

[antidisestablishment]

That's why i never suggested a 100% protein diet. All I'm saying is that humans require a balance composed of protein, fat and carbs. You can kill yourself in any extreme--a diet of straight carbs, fat or protein. You will die in a different fashion, but you will still die.

Too much protein is almost impossible, as the article you reference shows--300 plus grams?! You would be eating non-stop all day. Lol

And that doesn't take into account the fact that you would be hard-pressed to find such pure protein: most of our diet consists of fatty meats. If you ate only caribou , rabbit, or possibly the leanest cuts of poultry, you could approach the limit, but no reasonable person would do so.

It's a simple calculation: 3 calories per gram of protein, 3 calories per gram of carbs (which is metabolized as blood sugar if refined), and 9 calories per gram of fat. A reasonable balance is higher protein, less carbs, and the required fats (a small proportion). check out The If Calculator to see what you actually need. (Not associated with the site--just use it as a reference...)