Fibers
Fibers - the most important component of our nutrition. They serve as the basic material for construction of cells and organism tissues, being a source of their continuous updating. Fibers participate in maintenance of power balance of an organism. They take part in formation of enzymes and hormones. The sufficient maintenance of fibers in nutrition promotes regulation of functions of a cortex of a brain, raises a tonus of the central nervous system.
Value of fibers is defined first of all by a set entering in them and irreplaceable amino acids. Irreplaceable amino acids in an organism are not formed and should arrive necessarily with nutrition. The tryptophan, Leucinum, Isoleucinum, valine concern them, treonin, a lysine, methionine, fenilalanin. amino acids can be synthesised in an organism. Fibers are considered as the most high-grade if in them all irreplaceable amino acids contain. It is known, that products of an animal parentage much more richly irreplaceable amino acids, than vegetative. However the optimum amino-acid structure of an albuminous component of a diet can be received only at a proper correlation of those and other fibers. Approximately half of all fibers arriving with nutrition should is necessary on a share of fibers of an animal parentage.
For maintenance of the amino-acid structure necessary for an organism, it is expedient to use the various combinations of products mutually supplementing each other. For example, the use of white bread with milk is more rational from the biological point of view, than the use of one bread.
Not always a various food provides the balanced entering of alimentary substances necessary for an organism. It is noticed if to use a lot of meat products promoting the raised maintenance of irreplaceable amino acids, in an organism there can come disturbances of function of organs and systems. The purine exchange, secretory function of kidneys etc. will suffer first of all
At combustion of 1 of fiber in an organism it is released about 4 kcal of energy. It is a lot of fibers of an animal parentage contain meat, fish dishes. Some ready dishes contain optimum quantity of fibers of an animal and a phytogenesis, for example meat, fish with various , vegetable garnishes. Fibers of fish have special value. They are easily acquired by an organism and on the qualities do not concede to fibers of meat and a bird. Except high-grade fiber, fish contains vitamins A and D, a considerable quantity of salts and trace substances (iodine, zinc, phosphorus, etc.).
Milk and milk products have exclusive value; value of these products is caused by a favorable parity entering into fibers of milk of amino acids, good Adeps, milk Saccharum, vitamins, mineral salts and ability to bind some toxic elements and to deduce them from an organism. Therefore not casually with the years it is recommended to enlarge consumption of milk products.
For 160 days in an organism there is a full replacement of all own fibers. Average daily requirement of fiber for 70 kg serving in the mass. Makes about 91 a day, or 1.3g/kg of mass of a body.
With augmentation of intensity of physical work the daily requirement of an organism for fiber can reach 150 and above. The minimum requirement of fiber makes 0.7 g/kg of normal mass of a body.
The requirement for fibers also depends on age and a floor