So that the definition is clear
calories = energy
It is often denoted by the unit Kilocalorie (Kcal).
In some regions, the kilojoule (Kj) unit is used.
Where the 1 of the (Kcal) = 4.184 of the (Kj)
Both are units that measure the amount of energy in food
To make it more clear, food sources of energy are divided into 3 types, known as
Macronutrients
And each of them contains an amount of energy that the human body needs
To carry out his vital activities such as:
Brain Heart Kidneys
Or physical activities such as:
Walk Work Training
Protein
Each 1 gram of protein contains 4 calories
As protein helps in the growth, strengthening, and maintenance of muscles
His best sources:
Meat Seeds Legumes
In health, protein must be taken from all these different sources and not from just one source
Carbohydrates
1 gram of carbohydrates contains 4 calories
It consists of two parts
Simple
It is fast-acting (absorption) and can be obtained from several natural and
Manufactured sources such as:
Fruits Sweets Sugary Drinks
Complex
It consists of two parts
1- Medium effect (Absorption) and can be obtained from:
Rice Bread Macaroni
2- Slow-acting (Absorption) and can be obtained from:
Beans Lentils Pumpkin
And they may be the best option, as they keep you full for longer.
Fats
Each 1 gram of fat contains 9 calories
Most people think that fats are bad and should not be obtained in abundance; But in fact, this is not true, there are healthy and unhealthy fats. Healthy fats are necessary because the body needs them for vital processes. Unhealthy fats are the ones that cause health problems, and impede the necessary vital processes in the body.
Among the good fats are healthy for:
Hair Skin Nails
The best natural sources of fat are from:
Nuts Fish Olive Oil Eggs
This was a short and simplified explanation of calories. We hope you liked it.