Nutrition is the process of digesting, absorbing and utilizing food or nutrients in the human body, as well as the process of human beings obtaining food from the outside world to satisfy their own physiological needs, including ingestion, digestion, absorption, and utilization in the body.

Organisms from low to high, from single-celled organisms to higher plants and animals, from water life to land life, in different environments, ecological differences. As a result, the nutrients they need and the way they take them in are also different.

Nutrition is the science of food for living things. In the process of its development, nutrition not only includes the changes of food into the organism, such as participating in biochemical reactions and binding to the tissue cells; it also includes guidance on how to choose food to ensure the normal growth, development and reproduction of the organism. So nutrition has its biological significance in addition to its socio-economic significance.

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Extended Information:

Essential Nutrients Include Vitamins, Inorganic Salts amino acids, fatty acids, and certain carbohydrates that are sources of energy.

Non-essential nutrients are nutrients that the body can synthesize from other chemicals, although they can also be obtained from the diet.

Nutrients are the basic elements of food that can be absorbed and used to promote health. Certain nutrients are essential because they cannot be synthesized by the body and therefore must be obtained from food. Nutrients can be categorized into macronutrients and micronutrients.

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