I don't really agree with the use of the term energy dense food. Lots of energy dense food has been avalaible for most of man's history. Meat, fat and nuts are good example. In fact, it's theorized that meat was the one element that allowed us to evolve our big brains.

Well I'm not suprised that they forgot this little fact considering Susan Jebb is involved with this article. She has come around somewhat, but she is still stridently anti low-carb