What are calories?

How can you tell the distinction between caloriesand kilocalories?

"The "calorie" we refer to in food is actually the Kilocalorie. One (1) kilocalorie is the equivalent to one (1) Calorie (uppercase C). A kilocalorie is the amount of heat required to raise the temperature in one kilogram of water to one degree Celsius.

How do you determine it that the caloric value of food calculated?

One could believe it's due to how they can lead to weight gain. But no. Nope.

Avery an excellent topic to discuss because most people do not have a solid understanding about calories. First off, a calorie is not an actual thing and therefore cannot be full or empty. You cannot put calories in bottles. An calorie is a unit of measure of energy. It is how much energy required to raise the temperature of 1 mL, (which is also one gram) or water to one degree Celsius. If you really want to be meticulous about details, consider that energy that is required to raise the temperature from 14.5 in 15.5 inches C. The term calorie was actually coined by the great French scientist Antoine Lavoisier who used it to describe heating the internal temperature of your body.

A food calorieis is actually in fact a "kilocalorie." In other terms, it's the amount of energy required to raise the temperature of one liter of water by one degree. Originally, the calorie amount of food was measured in the form of a calorimeter. A food item that was known to have calories, which has had their water content evaporated was placed in a dish which was covered with a specific number of gallons of water. The container was then sealed, oxygen piped in and the food was ignited. By the increase in temperature of the water it was determined the calorie content of the food item was calculated.

There were issues with this kind in calorie determination. There are components in food like fiber that burn in a calorimeter but are not absorbed into the bloodstream, which means they are not able to contribute calories. Today, manufacturers use"the "Atwater indirect system" to determine calories by adding the calories provided by the energy-containing nutrients: protein, carbohydrate, fat and alcohol. Because carbohydrates contain a portion of fiber that is not digested and utilized by the body, the fiber component is usually taken out of the overall carbohydrate before formulating the calories.

The Atwater method uses the average of 4 Kcal/g for protein, 4 kcal/g for carbohydrate; 9 Kcal/g fat and 7 kcal/g for alcohol. They were calculated by burning these substances in a calorimeter. (There will be some rounding since simple sugars provide somewhat less and polysaccharides slightly higher that 4 Kcal/g). Thus , the label on 45 grams KitKat that has 3 grams of protein(including 29 g of carbohydrate (22 grams are sugars that are simple) and 12 g of fat could read 230 Calories.

Some fascinating data is uncovered from these calculations. The caloriecontent that is contained in doughnuts, which is around 500 Kcal is found roughly the same as that of a dynamite stick. The main difference is that the energy generated by dynamite is released instantly when it is ignited, whereas the doughnut releases its energy content in the body more slowly. This means you can't explode from a doughnut. But not literally.

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