Having also seen the Horizon programme (and being a reasonably fit, sporty male, although no spring chicken!) I was as interested in the long-term health benefits as the potential weight loss/control this diet offered, and keen to find out more about what was behind it. I was therefore delighted to find Kate Harrison's book - It's written in an extremely readable, easy-to-understand style, the science is explained in a non-baffling way, and it's full of motivational tips and examples (as well as ideas for low-calorie menus/dishes that you don't need to be Jamie Oliver to prepare - just as well for most men, I'd suggest!). Kate outlines her journey (and impressive weight loss) throughout the book, as well as her own personal reasons for wanting to take control of her health, and these made for inspirational reading - and something to remember on fast days when the hunger pangs kick in! It's early days yet, but yes, I am losing weight in what feels like a controlled way, and the fact that at the same time - as the research shows - I'm improving my health and guarding against some potentially nasty diseases in the future is a real bonus.