Soy Protein Definition

There are many soy products, for sports nutrition, the most interesting are the products of processing seeds – skimmed flour, isolates, concentrates. Soy flour is obtained by grinding and decreasing soybean seeds, but it has limitations. It contains 2 carbohydrates, which cause intestinal disorders – raffishness and stachychosis. More purified products – concentrates and isolates, are devoid of these drawbacks, and are digested without problems.

Why are soy products so popular? The thing is that:

∙ In the world soybean crops are about 70 million hectares, from one hectare can be obtained up to 730 kg of protein; 
∙ in the seeds of soy protein contains up to 40%! 
The protein (protein) content in soy concentrate is from 65 to 72%, in soy protein isolate the protein content reaches 90%, and the fat content does not exceed 0.8%

AMINO ACID COMPOSITION (averaged): 

Aspartic acid 4.4% 
Threonine 1.65% 
Serine 2.37% 
Glutamic acid 7.38% 
Proline 2.93% 
Glinic 1.94% 
Alanine 2.2% 
Cystine 0.49% 
Valine 2.27% 
Methionine 0.55% 
Ioleucine -1.85% 
Leucine 3.36% 
Tryptophan -1.85% 
Phenylalanine -2% 
Histidine 1.38% 
Arginine 3, 32% 
Lysine – 2.85%

REVIEW OF SOME SCIENTIFIC DATA ABOUT Soybean Protein:

─ According to scientific research, consumption of soy protein has an important positive effect – weight loss, body composition changes, waist circumference reduction, which is an important advantage in favor of consumption of this product. 
─ And here it was not possible to prove the preventive effect of this product on oncological diseases. 
─ In soy protein there are limiting amino acids, so it’s still not full. 
─ There is evidence indicating that soy protein increases estrogen levels

CONCLUSION: 
─ How the source of cheap protein suits those who can not afford a more expensive protein 
─ Suitable for those who have allergic reactions to other sources of protein, such as milk, or egg. 
─ Perfect for athletes of vegetarians, or those who, for certain religious reasons, can not consume other proteins.

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