Hi Lynn. Lack of exercise could be the culprit. To quote from the book, "if you're not exercising, you're not doing Atkins." Have you read the more recent edition of the book? If not, it's well worth it. There are quite a few changes, such as eating three cups of veggies per day.

We can help you out a bit more if you post a typical daily menu, or start a journal.

Good luck and happy new year!