What does TDEE mean?
Determining how many calories you need can be done by using a TDEE (Total Daily Energy Expenditure) calculator. The TDEE calculator calculates your BMR and your Lifestyle and puts those numbers together. This number is what you need if you are to MAINTAIN your weight. If you are trying to lose weight, than you want to lower this number. Remember, there are 3500 calories in 1 lb. If you want to lose 1 lb, then you need to reduce your calories by an average of 3500 kcal.