Protein supplements

Athletes are increasingly concerned about the potential benefits of nutritional supplements. Many people are increasingly more aware of the new studies in nutrition and not doubt the importance of eating high quality protein and biological value as the basis for their daily meals. Thus , protein is the nutritional key that opens the doors of muscle growth .

The proteins are involved in important cellular processes such as the formation of enzymes , hormones , antibodies, contractile tissues (actin , myosin, tropomyosin , etc.), etc. .

Along with carbohydrates and lipids are the immediate principles which provide energy to our diet . Also provide the body elements regenerators plastics body tissues.

Proteins are macromolecules consisting of nitrogenous basic units called amino acids (joined in long chains ) . These amino acids can be of 2 types :

Essential : are amino acids that the body can not synthesize and must obtain them from the diet. They are:

- Isoleucine .
- Leucine .
- Lysine .
- Metiomina .
- Phenylalanine .
- Threonine .
- Tryptophan .
- Valine .
- Histidine .

Non- essential :

- Alanine .
- Arginine .
- Aspartic acid .
- Asparagine .
- Cysteine ​​.
- Glutamic acid .
- Glycine .
- Proline .
- Serine .
- Tyrosine .

Low levels of the 9 essential amino acids limit protein synthesis in the body, hence the importance of not only the quantity but the quality of the ingested protein. The protein -based animal products like eggs, milk , etc. . provide near optimum mixtures of amino acids . As to the amount below 20 % of total calories ingested intakes athlete maintain a state of muscle catabolism , totally inadequate for the athletic progress situation .

Recommended Daily Allowance (RDA) for protein.

Initially no attention to the nutritional quality lent disparate figures were given. Subsequently international organizations gave figures 1g . per kilogram of body weight specifying which should include proteins of animal and plant origin . Current recommendations vary committees nutritional experts worldwide , according to WHO 0.6 g / day / kg body weight.

The CDR is the RDA to ensure not suffer deficiency diseases and are based on some general statistics and be taken as baseline values. But athletes deviate from the average individual, both physical activity and the effects of exercise physiology has on your metabolism. So many sports dietitians recommend that a figure around 2gr/día/kg body weight.

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