The Dukan Diet I lost 40 lbs in 5 months (June -November 2011) on Dukan. Have totally changed the way I eat -- pasta, rice, bread are no longer staples of my meals. I have stayed at my goal weight for 5 months so far with no problem. Dukan works! If you follow the instructions, I guarantee you will lose and it will be EASY. You will be shocked at how easy it is.