My husband and I discovered by chance in Mentheour Erwann video M6 on "how to lose belly?" We were surprised by the results obtained by the "guinea pig" and we started researching. The purchase of this book has transformed us. Here no miracle diet. just common sense and a healthy lifestyle to follow, other habits to take. We do not see our body and our diet in the same way and we take care to give good habits to our children. Well, the 40 days of the program is not easy and the mono-diet a bit harsh but the first time frankly no regrets. Some foods recommended for the program are a bit expensive and not easy to find but the whole province is to follow the thread and not to the last comma. For a single person, the complete method with coaching via internet is probably fine but for us, the book enough. It is very complete, well done (drawings, photos, ...) and more beautiful.