A word of caution if you are prone to kidney stones.....
I tried the atkins diet a couple years ago, worked great for a week, lost several pounds and thought I was all set. Then I was hit with a severe kidney stone!! Guys, if you have experienced this, you know what I mean!! OUCH!! My doctor actually told me that next to childbirth, kidney stones are one of the most painfull things that can happen to a person. He said the extra protein was the cause, and since I haven't had one before or since, he probably had it right, at least for me. So there ya go, a word to the wise....
By the way, the drummer in my band lost a HUGE amount of weight over the summer with this diet, a good 20-30 pounds in three months!!!!!!!! So other than my issue, it does work.