Article in the NYT I'm sure some of you have come across. Some interest points to consider, particularly its treatment of ketosis. It's like the article's author-protagonist is barely within grasp of a Big Realization, and you just want to scream at her, "Come on! Put it all together!" Simultaneously reassuring (the wider world seems to be starting to get it) and frustrating.

http://www.nytimes.com/2010/10/28/fa...pagewanted=all