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Health and Human Development - Nutrients and their impact on health:
protein
Protein
Growth and repair of body tissues. Proteins form the structure of the soft
and hard tissues that make up most parts of the body. Hard tissue includes
bones and teeth. Soft tissue includes skin, muscles, organs, tendons,
membranes, enzymes, hormones and antibodies. All these tissues are
constantly being produced.
Proteins control fluid, electrolyte and acid-base balance in the body.
Proteins also provide some energy. The 'Better Health Commission Targets
for 2000 and Beyond' suggest no more than 12%-15% of energy should come
from protein.
Severe deficiencies are rare in developed countries and when occasionally
seen, would be related to child abuse or extreme cases of anorexia nervosa.
Lower than recommended intakes of protein in young children slow the growth
rate of all parts of the body, including the brain.
In countries with a long history of war or famine, where crops frequently
fail, protein deficiency diseases are commonly seen in young children.
Marasmus is a combined protein-energy deficiency resulting from starvation.
Kwashiorkor [1] results from a lack of protein in the diet, usually
occurring in young children after weaning.
More common in industrialised countries. When more protein is eaten then
required, the amino acids that make up the protein molecule are deaminated;
meaning the nitrogen-containing amine group is separated.
Deamination [2] produces ammonia, which the cells release into the blood
stream. The liver then takes this up.
Liver cells convert the ammonia to urea and release this into the blood to
be filtered out by the kidneys and excreted in the urine. The carbon
section that remains can be converted to energy if required, or stored as
fat.
Complete proteins are found in meat, chicken, fish, eggs, cheese, and
milk. The proteins of bread, cereals and vegetables, although incomplete,
are readily available when combined with other foods.
View the video to learn more about the use of meats in the diet.
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12%-15% of energy should come from protein. Complete proteins are found in meat, chicken, fish, eggs, cheese, and milk
Why poor cannot full fill it ?
Proteins- are large biomolecules or macromolecules, class of nitrogenous organic compounds consisting of one or more long chains of amino acid residues and an essential part of all living organism, especially as structural components of the body tissues such as muscle, hair, etc. and as enzymes and antibodies.
What is difference between complete protein and incomplete protein?
Protein are often chemically modified by at least one long polypeptide. Its exist for a certain period of time and are degraded and recycled by cell through the process of protein turnover. Its life span is measured in terms of its half life and wide range.
Why is diseases commonly found in youngchildren.
Protein are organic compounds consisting of carbonhydrate,oxygen and nitrogen atoms,but some protein contain little phosphorus and sulphur atom. PROTEIN has complex structure consisting of chains of amino acids which are the smallest(basic)units. Protein are needed for growth,they are used to make white blood cells and antibodies.proteins are used to make.
how is the 12% - 15% of energy that should come from protein , as suggested by the "Better health Commission Target for 2000 and beyond" be achieved.
Protein is the body building nutrient.
This is a good topic, In some counties with a long history of war or famine,where crops frequently fail, protein deficiency diseases are commonly seen in young children,please what can be done to correct this?and children with kwashiorkor how ca they be free from it?