What Is Nutrition?
What is Nutrition? Nutrition is the science that interprets nutrient and another food contact in relation to organism maintenance, growth, reproduction, health and disease. Intake of food, absorption, assimilation, biosynthesis, catabolism and excretion are included.
There are three types of nutrition:
- Human Nutrition
- Animal Nutrition
- Plant Nutrition
But we see today only human nutrition.
What Is Human Nutrition?
What is food for human beings? Human nutrition deals with the supply of nutrients needed in food to support human life and health. Poor nutrition is a long-term problem that is often linked to poverty, food security or a poor understanding of dietary practices and nutrition. Starvation and its effects contribute greatly to deaths and disabilities around the world.
Good nutrition helps children grow physically, fosters biological human development and helps to clean up poverty.
Proteins, fats, carbohydrates, vitamins, minerals, water are necessary for our health.
I also believe that we should include oxygen as a nutrient, since (1) we all know how important oxygen is to us; and (2) we have ways to oxygenate the blood.
Nutrients and Functions:
- Fats & Oil
***Below We will see all Nutrition and their function one-by-one****
Protein is a large molecule consisting of one or more polypeptide chain and each amino acid chain turn. There are 100,000 different proteins expected in the entire human body, each consisting of a different combination of 20 amino acids.
Carbohydrates are plant-based carbon, hydrogen and oxygen-containing molecules such as sugars, starch and fibers (cellulose, lignin, pectin and mucilage). Carbohydrates are very important to us because sugars and starch provide the energy to maintain our metabolism and the carbon cause for us carbon-based humanoids, while dietary fiber plays an important role in health.
3. Fats & Oil
Triglycerides are fats and oils made of one glycerol and three fatty acids. Fats are usually solid at room temperature, while oil is usually liquid at room temperature. Fats and oils are essential for our health as a major source of energy and fatty acids and have other important functions.
Vitamins are a group of organic molecules that our normal metabolism needs for a small amount; they must be reserved for food, because our bodies either do not produce them or at least not in sufficient quantity. Vitamins act as coenzymes or constitute an integral part of coenzymes. Vitamins are usually grouped into two main groups on the basis of solubility:
1) Water-Soluble Vitamins
- Vitamin C and the B complex.
- water-soluble vitamins are not stored in the body, they are emitted in the urine instead.
2) Fat-Soluble Vitamins
- Vitamin A, D, E, and K
- fat-soluble vitamins are stored in the fat tissues and liver, thus toxicity may happen if overdosed with fat-soluble vitamins.
Minerals are a group of inorganic elements essential for the health and normal metabolism of our population. They can be divided into major minerals and trace minerals based on the number of our body’s needs.
1) Major Minerals
- Elements that are required by the body for at least 100 mg/day
- Calcium, Phosphate, Potassium, Magnesium, Sodium, Sulphur and Chlorine
2) Trace Minerals
- Elements that are required for less than 100 mg/day
- Fluorine, Iodine, Iron, Chromium Manganese, Cobalt, Copper, and Zinc.
Water made life. Water produces between 50% and 70% of body weight in humans. For the average adult, at least two liters of liquid per day are recommended for the best possible health.
Anyone who breathes for a minute or two will realize the importance of oxygen–I’m sure many people had this experience already when they were children.
Carbohydrates are needed as a carbon source for us carbon-based organisms; we use water as the medium where metabolism occurs; and we also rely on oxygen as the ultimate source of oxidative power to unlock the energy stored in carbohydrates.
It is difficult to understand why oxygen is not added by the science world as one of the categories of nutrition. Perhaps because oxygen is freely available, it was taken for granted.
Oxygen can be manipulated to improve our health and I would categorize oxygen as a nutrient in this respect. If you have any nutrition-related problem? Then comment freely below. Thank you! Thank you!