I've started Low carbing three times. So for the third time has been the charm. This time around I've been trying new foods and new ways of preparing things. I've also added going to the gym.
The only negative thing I've experienced is a slower weight loss than the first time. (I lost 34lbs in a month and only 21lbs in 5 months)
Be sure to check out the recipes and also keep a variety of low carb snacks around. Also plan your meals as advanced as you can. These helped me.