Restricting calories over the holidays is never a good idea for a multitude of reasons. Let me start by saying that a diet break for a couple weeks can actually accelerate fat loss once you return to a calorie restricted diet. The reason for this is that when a person diets for a number of weeks in a row for a long period of time, a hormone called leptin (king of all fat burning hormones in the body) is depleted. By taking a break from calorie restriction, leptin is restored.
Don't. Do not even try because it is way to hard to estimate any caloric value that you consume. With desserts, pies, creams, cookies, pasta dishes, and casseroles there is no way you will know what you are intaking. This is completely okay! Enjoy the holidays, enjoy good food, and time with family. Life is all about moderation and enjoying the things that come along with it. Do not deprive yourself of great times. The key is to not let this mindset of relaxation carry over i