Everybody talks about calorie or mentions this beautiful word calorie – at dinner table, restaurant menu, office, on food labels everywhere. Fact is, many people does not know the meaning of calorie -it is a mystery for many. It’s usage is so loose that it is phrased as “the thing in food that makes me fat.” A calorie is the energy it takes to raise the temperature of 1 gram of water 1 degree Celsius. The important word to take away from this definition is ENERGY. Calories are ENERGY that fuel our bodies; much like gasoline fuels our cars. Without sufficient calories our body does not work – heart beat, lungs, kidney, brain and all other system need energy to function. Understand how many calories our body need every day. For men and women, young children, teenagers, young adults, athletes, seniors – the calorie need varies. If you exceed the number of calories your body requires each day – you will eventually gain weight.