Definition:
1. Nutrition may be defined as the science of food and is relationship to health. It is concerned primarily with the part played by nutrients in body growth.
2. Nutrition is the process whereby living organisms utilize food for maintenance of life, growth, the normal functioning of tissues and organs and, the production of energy.
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Criteria of good nutrition:
1. It should protect the body from infection.
2. It should protect the body from deficiency diseases.
3. It should protect the body from obesity.
4. It should help in making a good complexion. e.g., clean skin, bright eyes.
5. It should help in building of body and make the person energetic.
Nutrients:
Definition:
Nutrients are the constituents in food that must be supplied to the body in suitable amounts.
Nutrients include water, proteins and amino acids. fats and fatty acids, carbohydrates, minerals and vitamins.
Divisions of nutrients:
i) Macronutrients. These are proteins. fats and carbohydrates which are often called “Proximate principles” because they form the main bulk of food.
ii) Micronutrients. These are vitamins and minerals. They are called micronutrients because they are required in small amounts (from a fraction of a milligram to several grams) .
Questions:
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