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 DEFINITION
Also called albuminoid substances (name derived from the albumin or egg white, which is a typical case). They are composed formed by carbon, nitrogen, hydrogen and oxygen, to which the phosphorus and the sulfur are always added.
FUNCTIONS
The proteins are used by the organism for the structure of the textiles and like material of store of the textiles that are wearing out in the development of the life. Also they play a role energy, but less important than that of the fats or carbohydrates.
NEEDS
The protein needs of the organism are covered by the feeding, but the organism cannot use them straight, they have to transform during the process of the digestion, coming down to his simplest components, the amino acids.
FEEDING
The proteins will be obtained so much from the animal kingdom as the vegetable kingdom.
Of the veintitantos amino acids that usually take part in our feeding, nine of them are the called essential amino acids, which the body has always to have in his diet.
Hence it is not enough that in the nutritive ration there is the necessary proteins minimum, also of to bring him enough quantity of these essential amino acids.
This is one of the arguments to fight the strict diets, like for example the vegetarian diet (the plants or vegetables it is where the essential amino acids are in frank minority or is missing). Approximately half of the proteins necessary for our feeding are of animal origin, being the milk and his most finished derived products since they contain almost all the essential amino acids. The children in growth age need in his diet, proportionally, a major quantity of proteins than the adults.
PROTEINS
| Animal nutritive matter |
% Proteins |
Vegetable nutritive matter |
% Proteins |
| Lean pork |
20 % |
Vegetables |
24 % |
| Greasy meat |
15 % |
Wheat flour |
11 % |
| Cow milk |
3 % |
Bread |
8 % |
| Eggs |
13 % |
Potatoes, Cabbage |
2 % |
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Fruit |
1 % |
WHAT DOCTOR CAN TREAT ME?
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DEFINITION 
