Calories, or more precisely, kilocalories (kcal), are a unit that indicates the energy content of a food. 1 kcal is the amount of heat needed to raise 1 kg of food at sea level by 1 degree. The term comes from the Latin word CALOR, which has the same meaning in Portuguese.
We often use the term calories incorrectly, but actually the correct term is kilocalories (kcal). In everyday language, we say that a portion of food, for example, has 100 calories, but in reality, it has 100 kilocalories (kcal).
Calories are widely used in food to quantify the energy value of food. However, this should not be the only measurement or analysis method, as it is also important to know the concentration of certain nutrients (vitamins, minerals, fiber) for each of the foods. Arguably, the calorie value provides a quantitative but not a qualitative measure of food.

To measure the amount of calories in a food, a device called a calorimeter is used.

You should know that each calorie provides energy to the body, that is, each calorie absorbed is metabolized and burned by the body.

Number of calories of key nutrients:

– 1 gram of carbohydrate contains 4 kcal

– 1 gram of protein contains 4 kcal

– 1 gram of fat contains 9 kcal

– 1 gram of alcohol contains 7 kcal

We realize that lipids and alcohol are high in calories.

Fiber, vitamins and minerals contain no calories.

Understanding calories with the car example

A car needs gasoline or diesel to move, and thus burn energy from these hydrocarbons fueling the vehicle. Food, like gasoline, also has the function of providing energy to human beings. To quantify the energy found in food, calories are used.

The amount of calories ingested varies for each individual.

The amount of recommended daily calories varies from person to person, depending in particular on age, gender, practice of physical activity or not, menopause , etc. The nutritionist or doctor will help you to know how many calories you should eat every day.

In order not to gain weight, you must burn as many or as many calories as you eat. In other words, if a person consumes 2200 calories a day and burns only 2000 there will be a surplus of 200 calories that will accumulate as fat, resulting in weight gain and, in more advanced cases, resulting in obesity .

Jeanne Kenney
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I’m a stylist trainer, a content creator, and an entrepreneur passion. Virgo sign and Pisces ascendant, I move easily between my dreams, the crazy world I want, and my feet on the ground to carry out my projects.

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