What is Calories?

What is Calories?

Scientifically, the amount of energy required to increase one gram of water a degree is called calories. Calorie; (Symbolic cal) is the amount of energy required to extract 1 gram of water temperature from 14.5 ° C to 15.5 ° C in atmospheric pressure.

Kilocalories (sometimes called kilograms calories or large calories) are 1000 calories. Since 1925, calories have been determined by the joule name. One calorie equals about 4,184 joules. Calorie as energy unit is used to heat a substance to obtain an effect or to determine the amount of heat in the science and engineering branches to which it is added. The heat capacities of the materials, melting and evaporation temperatures, and reaction temperatures depending on the chemical change are always explained by the calorimetry. For example, when 4 matches are lit, 1 calorie energy is released.




What is Calories in Nutrition?

Scientifically, when we answered the calorie nedir question, we said that it was the amount of energy needed to raise the temperature of 1 gram of water by 1 degree. There is a strange disagreement about the unit of energy between the food and the physicist.

When talking about nutrition, the calorie value of foods is often expressed in terms of kilocalories and is often referred to as calories, rather than weight. Food experts say that 1 calorie is actually worth 1,000 calories ie 1 kilocalorie.

Abbreviations:

Calorie (Calorie): cal

Jul (joule): j

Kilocalories (kilocalorie): kcal

Kilojoule: kj.

What is the calorie mentioned in the diet? It is the amount of energy in our food that our bodies can use. Nutrients break down in the body during digestion. These divided parts are then transformed into glycose (the fuel required for body functions). The concept of calorie counting first appeared in Lulu Hunt Peters's book, Diet and Health With Key to the Calories, which was on the bestseller list of 1918. The book also included useful methods for weight control. Since then, we have been acquiring new knowledge in this regard.

Each machine requires a fuel for its operation. Our body is also a machine and it takes nutrients as fuel to carry out its vital tasks such as growth, self-renewal, energy storage.

So we can use this analogy in answering the calorie nedir question; The fuel of a car is gasoline, and the fuel of man is calorie.

The energy that comes out of burning this fuel or food is called calorie. Some foods give more calories than others. For example, fat gives up twice as much calories as sugar in the same weight.

The calorie requirement varies according to the volume, weight, occupation, health status, or even mildness of the person. The amount of calories that the body needs is about the work that anyone has done. For example, someone who weighs about 50 pounds needs 1680 calories per day. But this is for a day with no rest, with a complete rest. If you are working on a non-exhausting bottle, such as a table-top job, your body needs an average of 3360 calories per day. If you are working hard, your body needs 6720 calories to work properly and properly. In summary, since a woodcutter will not spend a lot of energy, he needs a lot of calories. It is less physically, but if it is needed by a person working in a head office.

According to the researches made, the average values ​​reached for weight loss by burning calories; You need to burn 7000 calories to lose 1 kilo. You consume 1 kilo more than a kilo of what you consume less than 500 calories a day for 15 days. I said probably because this calculation, which is true in theory, can not keep it due to the incorrect calculation of the calorie in real life. The only way to burn calories is not to eat less, of course, you can do it by moving more. The best way to do regular exercises is to do both weight training and cardio.

We need energy for every movement we make including breathing. We also get this energy from the food.

But when we spend the amount of calories we take, the calories that are not consumed in our liver are stored as sugar. So there is no need to stop eating to consume energy.

However, when too much sugar is accumulated in the liver, the liver transfers some of this sugar to the muscles to store for a short time (the glycogen stores in the muscles). If the calories are not used when they are here, they turn into oil for longer storage.

As you can see, there is a sensitive mechanism in the body that balances caloric intake according to calorie needs. If your body gets too much calories as fuel, your weight will increase. If you get fewer calories than your body burns, you are weak. In fact, this basis is really moving with the tone and tone of diet that is said about weakening.

I will briefly explain how these calories are measured while giving the answer of the calorie nedir sorus. What is a calorimeter? Calories are energy as we have explained above, this energy is revealed by the burning of food. The so-called calorimeter, which measures the calorie content of foods, is a simple arrangement consisting of a water tank and a steel container with a high-pressure oxygen connection immersed in it.

Materials to be measured are placed in a steel container, oxygenated and ignited. After burning, the temperature rise in the surrounding water is measured. When the weight of water in kilograms is multiplied by the amount of heat rise in degrees, the result is the amount of calories directly (used by food experts).

People are aware of something when they measure the calories of food like this. Whatever food they were in, they were giving the same amount of calories per gram of all protein types. The same was true for oils and hydrocarbons. Each gram of protein and carbohydrates contained 4 calories, while the fat contained 9 calories.

So they are left as long as they are not obliged to burn calories by burning the food one by one. It was easy to know how many grams of fat, protein and carbohydrates are in a food. By multiplying the weight of protein and carbohydrates by 4 and the fat by 9, you could find the total calories you eat.

In fact, there is a small difference between the calorimeter and the human body. In the calorimeter, all you eat is burned. In the body, 2 percent of the fat, 5 percent of carbohydrates, 8 percent of the protein digested and disintegrated, that is, the energy goes out of the body without turning. In sensitive reviews, you need to add this difference to the account.

The table below is based on average values. On this tableless day a person is given a daily calorie need on a day spent (not perfect but resting state):