Lots of good discussion here, and just to be clear, I posted the article b/c I found it interesting, not because I agree with it or follow caloric restriction in my own diet. I definitely am a "moderation in all things" gal, eating neither a high protein nor high carb diet overall. I did do low-carb for a couple of years when I had 15 lbs. to lose, but it was hard to for me to eat that way over the long haul since my DH is very much a high-carb man, so now I am back to a more balanced way of eating. I try to eat healthy, whole foods, plenty of vegetables, very little red meat. I eat fish and chicken, and I also like to get protein from beans, nuts and nut butters, and some low-fat dairy, like yogurt.