A calorie is a unit of energy. The calorie is defined as the amount of heat necessary to raise the temperature of one gram of water by 1 degree Celsius, at a pressure of 1 atmosphere. The International System of Units (SI) unit for heat and for all other forms of energy is joule (J). The energy content of food is given in Calories.
1 Food Calorie = 1000 calories = 1 kcal = 4.186 J
1 g of Dietary Fat = 9 kcal = 9 Calories
1 g of Dietary Carbohydrate = 4 kcal = 4 Calories
1 g od Dietary Protein = 4 kcal = 4 Calories
If you eat junk foods that contain mostly fat, then you are adding calories to your body. A healthy diet plan should include vegetables, fruits, grains, lentils, and beans in your diet. These foods are loaded with vitamins, minerals, and dietary fibers necessary for keeping you fit.