Home Nutrition What is Nutrition?| Definition| Fundamentals of Nutrition

What is Nutrition?| Definition| Fundamentals of Nutrition

Fundamental Guide To Nutrition
Fundamental Guide To Nutrition

Photo by Vitalii Pavlyshynets

Before we understand,

Q1. What is Nutrition? 
Q2. Definition of Nutrition?  
Q3. Fundamentals of Nutrition?

We must overview some of the fundamentals facts about the human body.


You might be familiar with some of these facts:

  • Appropriate Nutrition is one of the keys to a sound life.
  • The health of the human body largely depends on a balanced diet.

Having said this we will try to understand the different aspects of nutrition. Let us just start by interpreting nutrition as information. The very first important question arises:

Is the human body made up of atoms?

According to sources

Source1 Source 2 Source 3

  • 99% of the mass of the human body is comprised of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.
  • About 0.85% is made out of another five components: potassium, sulfur, sodium, chlorine, and magnesium.
  • All 11 are necessary for life. The remaining elements are trace elements, of which more than a dozen are thought on the basis of good evidence to be necessary for life.
  • Not all elements which are found in the human body in trace quantities play a role in life.

More information about this topic can be found in this article

Since the human body is made up of atoms. If we try to analyze the human body at the quantum level, the human body may be just considered as information. Food and Nutrition even may just be considered as information as they are composed of atoms at the unitary level. Considering this fact, what information we serve to our body can either enhance it for the sound functioning of our body or corrupt it promoting bad health. Therefore, nutrition largely has an impact on the efficient synchronization of bodily functions. Having said that dependent on our goals, how we need to shape our body. We can choose what information or the nutrients we serve in our bodies.

Now let us define the nutrition based on the chemical composition.

What is Nutrition?

What is Nutrition?
What is Nutrition?

According to this Source,

Nutrients are substances the body needs for energy, building materials, and control of body processes. There are six major classes of nutrients based on biochemical properties: carbohydrates, proteins, lipids, water, vitamins, and minerals. Fiber, which consists largely of nondigestible carbohydrates, is sometimes added as the seventh class of nutrients.

Nutrients may further be classified into two categories:

  • Essential Nutrients

What are essential nutrients for the human body?

The essential nutrients also are known as necessary nutrients. They cannot be synthesized by the body and they are needed to be obtained from the food we consume. For the optimal working of physiological processes, they are needed. Essential Nutrients includes:

  • Carbohydrates
  • Proteins
  • Vitamins
  • Minerals
  • Fats/Lipids
  • Water

However, not all minerals and vitamins are considered essential.

  • Non-Essential Nutrients

What are non-essential nutrients for the humans?

Nonessential nutrients, conversely, can be synthesized in the body in adequate amounts for ordinary working, in spite of the fact, they are obtained from food as well. Non-Essential Nutrients includes:

  • Biotin
  • Cholesterol
  • Vitamin K
  • Vitamin D

They are also classified into two categories, based on the quantity in which the nutrients may be required by the body.

  • Macronutrients 

Nutrients that are relatively required in large amounts by the body are Macronutrients. They include carbohydrates, proteins, lipids, and water. All macronutrients with the exception of water are utilized by the body for vitality, despite the fact that this isn’t their sole physiological function.

  • Micronutrients 

Nutrients that are relatively required in small amounts by the body are Micronutrients. They do not provide energy. Primarily, they are necessary for the biochemical reactions of metabolism, among other vital functions. They include vitamins, minerals, and possibly phytochemicals as well.



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