The energy that's given to the body by food is a. measured in units called calories.
All food have corresponding calorie values that help track how much energy you consume in a day. The maximum or ideal calorie intake per day is 2,000 calories. It is said that 1 gram of carbohydrates is equivalent to 4 calories, 1 gram of protein is equivalent to 4 calories, and 1 gram of fat is equivalent to 9 calories. To find out the exact amount of calories there are in the food you consume, you can check the nutrition facts label at the back of its packaging.