Sunday 8 June 2014

Nutrition and Diet

Nutrition is the process of assimilating food.The study of nutrition is the study of foods and their use in one's diet.
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Nutrients are the chemical componentsof foods utilized by the body as  a source of energy for building and maintaining body tissues. Nutrients are proteins, carbohydrates, fats, minerals, and vitamins.

Nutritionists are professional people whose training have been is medicine, biochemistry, physiology, agriculture and other sciences.

Infants and young children have physiological needs for growth. Old people, because of physical or mental infirmity, may fail to ingest adequate amounts of the right kinds of foods.

It is not only the poor who suffer from malnutrition. Nutritional problems occur the affluent. In wealthy communities, the prevalence of obesity, diabetes, and other dietary disorders have increased due to faulty food intake.

Function of food

The body is an engine that releases energy present in food and uses this for the mechanical work performed by our muscles.

The body breaks it down and builds up its component part. Nutritionist have established a list of dietary substances essential for normal growth and maintenance of good health. Most of the substances are present in human diets and deficiency of anyone of them may lead to serious symptoms of ill health. These substances are proteins, minerals and vitamins.

Essential Nutrients

Protein
Minerals
Calcium
Sodium
Iodine
Vitamins

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