Follow the program and don't cheat. The first few days are hard but after the 3rd day I didn't have any problem. What has helped me is I created a 30 day calendar and labeled shake days and cleanse days. Also I created 2 charts, one for shake days and one for cleanse days. On each chart I put breakfast, mid morning, lunch, mid afternoon, dinner and bedtime. In each category I put exactly what I was supposed to have for like a shake and Isagenix Supreme, or a snack, or accelerator.... This helps me as a quick reference and keep me on track.