What are Calories in Food?

By: BellyFatZoneTeam

Non-generating energy does not lose energy, it only transforms from one form to another, which is one of the well-known definitions of energy and we learned when we were young.

Energy is everywhere, the energy that makes everything run, from cars, cameras, phones, and everything around us uses it to run.

Our bodies use the same image energy to perform activities inside the body, performing light or strong activities that require energy.

What are calories in food?
What are calories in food?

Within this article, we will learn about calories or energy for our bodies. At the end of this article, we will have a list of the energy value of some of the foods and drinks we often use every day, from which we use appropriately.

Now BellyFatZone invites you to refer to this article together!

What are the calories?

A calorie (also called a calorie) is a measure of energy. The human body feeds food and converts it into calories (energy) to sustain life and perform all activities.

When the body burns more calories than it consumes, the body begins to use calories from other sources like fat or muscle, leading to weight loss.

Those of you reading this article create your own routine of reading the nutrition facts panel after each product.

This gives you a better understanding of diet and health and the role of calories for someone who needs to lose weight or gain weight.

Those of you reading this article create your own routine of reading the nutrition facts panel after each product.

This helps you better understand nutrition and health. And in those ingredients tables, it is indispensable for calories.

To gain a thorough understanding of what calories are, let us answer each of the subsections below.

Calories are 1 unit of measuring energy. You use calories in food and drinks to perform essential body functions such as breathing, walking, movement, talking, eating, thinking, etc.

Unused calories, that is, the excess, will be stored as fat. If you continually eat more calories than you burn, you'll gain weight over time.

And conversely, if you load less than burn, then you will lose weight.

We often think that calories only come from food; however, calories can come from anything with energy. For example, 4 liters of gasoline contains about 31,000k calories.

View more:  List of high-calorie foods to gain weight

Calories, calories, and kcal

Calories, calories and kcal

Have you ever heard of one saying calories, another saying calories but looking at the product with the word kcal?

  • What is a calorie?
  • What is kcal?
  • Then what about the kilocalorie?

A thousand questions suddenly came. If you are a beginner, you will surely be like a dreamer because you do not know what the three are related to. Please calm down, and we will slowly learn offline.

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According to science, we will have the following definitions:

  • Definition of calorie (cal): The amount of heat needed to raise 1g of water temperature to 1 degree Celsius.
  • Definition of kilocalories (kcal): The amount of heat needed to raise the temperature of 1 kg of water to 1 degree C.

A calorie is a unit of microscopic energy; even a small cookie contains thousands of calories already. Therefore, to make it easier to calculate, one translates 1000 calories into 1 kilocalorie.

1 A calorie is equal to 1 kilocalorie. Calories (with large C) will denote kcal.

However, people often use calories (small letters c) instead of kcal. Actually, this is a mistake, but it was so common that we accept.

So if you see on the product the energy level is 500 calories or 500 kcal or 500 calories, it's the same thing.

Actually, Calories = Kcal; they are all names of calo

In the US, they still often use calories, while in the UK, they have switched to Kcal

1 calo = 1 calories = 1 kilocalorie = 1kcal

Calorie: often referred to as a small calorie, often used in chemistry, scientific research …

Calories: commonly referred to as large calories, kilograms of calories; is the number of calories in the diet, the nutritional profile of foods, foods; is the number of calories your body consumes each day.

1 Calories = 1000 Calorie

Kcal is an acronym for Kilocalories

1 Calories = 1 Kcal = 1 calo = 1000 Calorie

3. Calories in food

Different foods provide different levels of energy. Protein and carbohydrates provide only about half the calories per gram of fat.

  • 1g carbs = 4 calories
  • 1g of protein = 4 calories
  • 1g fat = 9 calories

Because fat provides the most calories, people often limit the amount of fat in their diet when dieting.

Calories in food

However, some types of good fats are still essential for a healthy body. For example, polyunsaturated fats are good for the heart.

See also good high-fat foods if you have any questions.

And although carbohydrates provide fewer calories, some carbs are still considered unhealthy, such as refined carbs, also known as empty calories.

The problem is not just the calories you consume but where they come from because not all calories are the same. Certain types of calories offer special weight loss benefits.

For example, calories from protein help build and maintain muscles, help you function better, and burn more calories. Calories from fiber-rich foods help you feel full and satisfied and have fewer cravings.

According to the US Health Agency, the maximum daily intake of only 25% of calories from fat. If your current diet is 2000 kcal, then the maximum is 504 kcal from fat.

View more: 32 Foods That Burn Belly Fat Fast 

4. How much does a calorie weigh?

A calorie is 1 unit of energy. We often think that calories only come from food. However, calories can come from anything with energy. For example, 4 liters of gasoline contains about 31,000k calories.

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Specific examples for you to understand, 1 calorie is the amount of energy or heat needed to raise 1g of water temperature to 1 degree Celsius. 1 calorie is equal to 4,184 joules, 1 unit of general energy in physics.

Also, you need to know more the 1000 calories = 1 kilocalo.

5. Function of calories

The human body needs the energy to survive, such as breathing, movement … The body gets this energy completely through eating and drinking.


The number of calories in each food helps you understand how much that food has. Calories come from carbs, protein, and fat.

Therefore, if you know how many carbs, protein, and fat you have in your food, you will calculate how many calories it has.

If you look at the nutrition label of an oatmeal package, you will see that it has an example of about 160 kcal.

However, if you look closely at the bottom, you will see 2 grams of fat, 4 grams of protein, and 32 grams of starch.

Our bodies burn calories in oats through metabolic processes, enzymes in the stomach that break down carbs that makeup glucose and other sugars, fats that makeup glycerol and other fatty acids, and proteins that make up proteins—the amino acid chain.

These molecules are then transported by blood vessels to the cells. In cells, they have 2 options:

  • Absorbed for immediate use by the body.
  • It is taken directly into the final stage of metabolism and chemical reaction with oxygen to release stored energy.

6. BMR and TDEE

How many calories are needed for the body to maintain a healthy shape and healthy cells? This number usually varies from person to person.

You will often see on the nutrition label of the foods you buy that the “percentage of daily value” is based on a 2000 calorie diet.

This is an average, but with your body, you can> or <.

Height, weight, gender, age all affect your calorie needs. There are 3 main factors involved in calculating how many calories a day your body needs:

Here, the basal metabolic rate or BMR is all the energy the body needs to MAINTAIN LIFE like a heart beating, stomach ringing …

If you only rely on this number is not enough, but depending on the final number is TDEE. This is the total body energy consumed, including BMR.

You can use this TDEE calculator to calculate your own index.

7. Calorie needs of the body

As mentioned above, those 3 factors are involved in calculating the number of calories your body needs each day.

Calorie needs of the body

In particular, the second factor consumes the highest number of calories. Physical activity, including walking, jogging, eating, speaking, etc., burns energy.

The thermal effect of food is the last factor that affects the number of calories your body burns. This is the number of calories needed to help digest food to form nutrients.

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8. How do calories make you gain weight?

Calories in foods provide essential energy, but if consumed too much, you will gain weight.

Excess calories are stored as fat. The body also needs some of the stored fat to stay healthy, but too much fat can cause many negative problems.

So how do you know that you don't eat too many calories? You must understand your own calorie needs.

The number of calories that the body needs to perform basic metabolic functions and daily physical activities is the TDEE mentioned above.

Having more energy than TDEE means you will gain weight.

The recommended daily calorie intake (for Americans) is between 1,600-3,000. However, these are general estimates only and will vary greatly from person to person.

9. Calories and weight loss

The next thing we know is that when the calorie intake is smaller than the calorie consumed, you will lose weight.

Calories and weight loss

So to lose 1kg, need to burn how many calories?

Experts estimate that if you overcharge 3,500 calories, you will gain about 0.5kg.

To lose 0.5kg, you need to create a deficit of 3,500 calories by eating less or increasing activity to burn energy. The best way is to combine the two methods.

A reasonable level is to lose 500 calories a day to lose 0.5kg per week. Losing 0.5-1kg per week is said to be a healthy and sustainable weight loss rate.

The most important thing to remember is not to cut back on too many calories to not pose a health risk, especially to avoid fasting.

Besides, suppose that you do not consume nutrients such as Carbs or Whey Protein; the body will automatically burn fat and muscle to generate energy.

Many of you will think burning fat is good, but do you think running out of energy will suffer?

Not to mention, exercise helps to increase metabolism. However, this process takes some time to return to normal.

This shows that the more you exercise at high intensity, the more fat you will burn after training.

Please note, depending on the calories that your body needs, you will know what you need to do when you read the article analyzing the diet menu that we wrote in detail.

Note, if you want to support fat loss and pay attention to calories, fat burning aids will help you.

What is a calorie- Video

Printable Calorie Chart Of Common Foods

click image to view largePrintable Calorie Chart Of Common Foods Printable Calorie Chart Of Common Foods Printable Calorie Chart Of Common Foods Printable Calorie Chart Of Common Foods Printable Calorie Chart Of Common Foods Printable Calorie Chart Of Common Foods


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Hello dear, if you are reading this, you are responsible for yourself, your family and want to create more value for society. Keeping a flat belly and a toned body will help you have a much better work performance, and that will, of course, help you be more successful in life; we completely understand this.

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Albert Einstein

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