Calories are a unit of measurement to show how much energy you will get from a serving of food. Therefore, to lose weight, it's best to limit any calorie-dense foods – anything where you get a lot for a little – so you can eat enough food to really feel full.

Using the calories table you can define the energy value of the most popular food items and cooked foods. As well, you can learn and correct your daily eating.

While quality of food is important for a healthy diet, quantity is also a major factor of good nutrition. Especially for anyone concerned about maintaining or losing weight, it’s a good idea to regularly review a calorie database and nutrition labels to see how much fuel you’re getting to feed your daily activity – and if it’s too much. Those extra calories, after all, are converted to excess body fat.