I can't tell you how many times I've heard people say "I have a party tonight so I'm not going to eat anything until tonight...I'm saving my calories for________." This is NOT the best choice!!! "Saving calories" typically results in: fatigue throughout the day, irritability throughout the day, poor choices when you finally do eat, and overeating...which leads to feeling uncomfortable, stuffed, and regretful feelings about what you ate. I encouraged you to consider a new way of holiday eating when you have a special occasion/holiday party/celebration....
Aim to eat a well balanced meal plan throughout the day...if you plan on splurging a bit on something special that you love, aim to cut back on portions throughout the day, but DO NOT starve yourself through the day. Think ahead about what you really want to eat, and have a plan going into the special occasion as to what you plan to eat. Doing this will help you to feel better throughout the day, and will help you feel better when you are eating at your party as well. In addition to FEELING better (this is the goal, right?) your body will also FUNCTION better!!!