Applied Nutrition
To eat is a necessity, but to eat intelligently is an art.- La Rochefoucauld.
Hippocrates first coined the word clinical nutrition in 4th century B.C. The word
diet is derived from the Greek word "data" which means healthful
living according to proper reflection of food. The science of nutrition is
defined as “the study of the Nutrients in food and the body’s handling of
them”. Nutrition means “the process of nourishing or being nourished especially,
the series of processes by which organism assimilates food and uses it for
growth and replacement of tissues”.
Nutrition: It may be defined as the science of food and its
relationship to health. It is concerned with the part played by nutrients in
body growth, development and maintenance.
Dietetics: Dietetics is the practical application of the principles of
nutrition. It includes the planning of meals for well and the sick.
Nutrients: A substance in suitable amount is essential for the growth,
maintenance, function and reproduction of a cell or organism is called
Nutrients. Nutrients consist of carbohydrates, fats, proteins, Vitamins and
Minerals.
Macronutrients: Proteins, carbohydrates, and fats are
called macronutrients. It supply energy in large quantities to the body and
build tissues.
Micronutrients: Vitamins and minerals are called
micronutrients. It is needed in small quantity but they play a crucial role to
regulate and control body processes.
Malnutrition: Malnutrition is an impairment of health resulting from a
deficiency, excess or imbalance of nutrients. It includes under nutrition and
over nutrition.
Metabolism: Metabolism is the sum total of building up reactions
(anabolism) and breakdown reactions (catabolism) going on inside the body of a
living organism.
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