If we have to give up all our "sin" foods for the rest of our life, you know, the ones we have been eating the most that have made us overweight (maybe obese), we may say forget it. I can't eat boring food the rest of my life. Well first, eating healthy doesn't have to be boring, as I explain in my Nutrition DVDs. While eating healthy with the right portion sizes in critical, so is taking one day a week to eat what you want, that is, ANYTHING YOU WANT!. This is the "cheat day".