Admittedly, you need to keep in mind that your body requires calories in order to function in a right way. But the thing is that your excessive calories are likely to be stored in your body in the form of fat. Actually, if you have stored too much fat in your body, you will definitely be obese and you will suffer from the whole range of diseases. That is why, once you noticed that you are overweight, you need to get rid of these pounds in order to prevent difficulties. Besides, to reach your goal in a successful way, you will have to realize how to burn those calories stored in the layers of fat. Indeed, the thing is that your body is able to turn the stored fat into calories in case you consume smaller amount of calories than you need. From this very reason calorie deficit is so important in case you do your best in order to get rid of excessive weight. However, there is no need for you to create a big deficit. As a rule, you can shed about 500 calories on a daily basis. Actually, this is going to help you to get rid of approximately a pound each week.