This is a book by Jason Vale which I happened to see it in Borders. It's a juice diet for 7 days. I read some reviews in Amazon.com. Apparently, you'll be taking 5 juices a day and also some supplements I think. Many reviewed that they didn't feel hungry although only on liquid diet and in fact they realised they are more energetic, many lost more than 7lbs. I haven't buy the book yet cos was thinking if any podders tried this before.