I have to speak up and second everything that Katiekinz is saying! If the Dukan Diet is something that will help you develop a better relationship with food and nutrition, then I am all for it! But you must be realistic with your goals, or else you will burn out, feel like a failure, and give up, returning to your comfort eating.
In 2008 I lost considerable weight doing it the old fashioned way - proper nutrition, strapping on a pedometer, and walking 10,000+ steps a day. In January 2009 (and probably because of my better health) I got pregnant at the age of 37. My OB-GYN said I was healthier than many of the 20-somethings he saw as patients. And thanks to my better understanding of food, and keeping up some walking during my pregnancy, I kept my weight gain to a sensible 25 pounds.
January 2010, another pregnancy! Repeat the process... better eating, daily walks, weight gain under control. During the 2nd pregnancy is when my OB-GYN told me how proud he was of me, because in our town (in Corn-hole-ville, Indiana) the average pregnancy gain is about 60 pounds. That's more than double the recommended healthy gain!
Point is, it CAN be done, and it can be done in a healthy long term manner. If I hadn't lost the weight the right way beforehand, I'm sure I would have process-fooded/junk fooded myself right up to that 60 pound local average.
And because of the better relationship I built with food and nutrition BEFORE the pregnancies, I was able to sensibly get back to a healthy weight after each pregnancy. But this could not have been done if I hadn't changed my views on how food is our body's fuel, and how it makes my "vehicle" operate.
No matter how you choose to do it, Good Luck to you!!!
** You can’t solve a problem with the same mind that created it. –Albert Einstein **