Calories
Calorie is a unit for energy quality measurement. This term refers to everything, which contains energy charge. For example one liter petrol for instance contains approximately 7750000 calories. By the calories which have in 217 Big Mac hamburgers from McDonald’s, you can pass 35 km. distance with your car.
Calorie is the energy quality or heat, which is necessary for the temperature of 1 kg. water to be increased with round about 1 degree. One calorie is equivalent to 4.184 joules, a unit for energy measurement, used in physic.
Most of us associate calories with things which we eat and drink, but in fact these calories are actually kilocalories (1000 calories = 1 kilocalorie). The same refers and for drills-when the practice scheme shows that you will burn 100 calories, this really means 100000 calorie burning.
All we need from energy to survive - for breathing, for moving, for normal blood circulation and this energy comes from the nutrients we take. The calories calculated in the food, which we consume, serves as energy quality measurement of the particular food product. One gram carbohydrates have 4 calories, 1 gram proteins also have 4 calories, and 1 gram fat contains 9 calories. The nutrients are compilation of these three basic elements. So, if you know how many carbohydrates, fats and proteins have in the exact nutrient, you easily can calculate the exact calories or energy that, this product gives you.
Our body burns calories by metabolic processes, when enzymes remove the fence of carbohydrates up to glucose and other sugars, fats up to glycerin and fatty acids, and proteins up to amino acids. After that, all these molecules transfer by the blood circulation to cells, where they are being absorbed for immediate usage or participate in the final metabolic stage, when they react with oxygen and release the collected in themselves energy.