Okay, you don't say at what point you are in with your weight loss or how long you've been doing this, but I wonder if you are tracking your food and staying within the recommended calorie range for your height/activity level, etc. Eating too FEW calories can prevent weight loss as well as cause other problems as is explained in this article www.sparkpeople.com/community/ask_the_expe
so you might want to check that out.
If that's not the problem, you may be getting a lot more calories than you realize in foods other than sweets. I'm no expert but if you don't get a response from one here, you might want to try the "Diet and Nutrition" forum. Good luck to you, and don't give up!