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Soy Protein Isolate
Soy protein is made by extracting soy flour under
slightly alkaline PH followed by precipitation,
washing and drying. It offers excellent dispersibility.
By using this process soy yields a protein of over
90%, hence given the tittle of soy protein isolate. It
also has a high content of BCAA and glutamine and
arginine.
Analysis
Essential Amino Acid
Composition per 100
grams of protein
Protein 90%
Histidine 2.3
Isoleucine 4.3
Moisture 5.5%
Leucine 7.2 Lysine 5.5
Fat max 8%
Methionine 1.2 Phen 4.6
Fat (hydrolysis) max 4.5
Threonine 3.3
Tryptophan 1.1
Valine 4.4 Glutamine 16.8
*** Notice there are more aminos in soy protein isolate then in whey protein **
Bodybuilding and Athletic supplementation
description
Soy protein is quickly again becoming popular
amongst the bodybuilding community. The reason
RESEARCH! Here is what research has
discovered about soy isolate.
1. Soy fights cancer and has anti-estrogenic effects.
2. Soy has the highest amount of BCAA glutamine
and arginine.
3. Soy may raise the level of endogenous
production of thyroxin, which in turns speeds up
metabolism.
4. Daidzein, one of soy's isoflavones, may raise the
level of testosterone and growth hormone.
5. A diet rich in soy decreased the chance of heart
disease.
Soy protein is considered a must in a bodybuilders
diet. Due to extreme low cost, bodybuilders
experience great gains in muscle mass and decrease
in body fat.
** Sounds good right?? **
PER POUND
Soy protein BAD, I don't think so.
By Alex Rogers, Proteinfactory.com
Recently, an article was written by a certain Net Magazine, claiming that soy protein was a "Bad" Protein
to use if you were a bodybuilder looking to add lean muscle mass. The article concluded with the use of
research studies, that soy proteins' phytoestorgens actually lowered testosterone production in animal
studies. Hence lower testosterone levels, higher estrogen levels, no muscle gains.
But of course there are always two sides to the story, and I think I have a better case, jury listen up!!!
I would have to disagree, and nutritional experts agree, that soy protein is an excellent protein to use if
you're a bodybuilder using the protein to gain muscle mass. Here are a bunch of reasons.
Hormonal Studies
1)A study found that soy protein isolate (daidzein) may have a gender specific normalizing effect on
sex-hormone prduction. Male lab animals experienced greater testosterone and growth-hormone excretion
as well as muscle growth" This contradicts the study that found that genestein decreased testosterone
serum.
2)Another study found that soy may be actually antiestrogenic. . They may also act as antiestrogens by
competing for the binding sites of estrogen receptors or the active site of the estrogen biosynthesizing and
metabolizing enzymes, such as aromatase and estrogen-specific 17 beta-hydroxysteroid oxidoreductase
(type 1).
3)Probably the best research study contracting the one used by the author of "The bad protein" is this.
The phytoestrogens are only found in raw soy products. Not soy protein isolates, which are used as
protein supplements for bodybuilders.
"There are very little data on effects of phytoestrogens in males. Estrogenic effects in wildlife have been
described but the evidence for the role of phytoestrogens is indirect and seen under conditions of excessive
exposure."
And what is most interesting about this study is that it was conducted by one of the same researchers at the
same univeristy as the study that found genistein lowered testoserone serum levels. This researcher
concluded that even though he found genestein has estrogenic effects, it really cant be concluded because
of the above statement in his other reasearch findings. Hence, he found soy to be estrogenic, but it really
cant be "hard" evidence because there is not enough proof and it involves ridiculous conditions.
See what I mean by two sides to every story..
Positive Benefits of soy
1) The amino acid profile of soy is excellent. If you don't know by now the Glutamic Acid level is higher
than whey. Why? Mainly because it is a plant protein and not dairy.
2) Soy has been proven to lower heart disease risks and cancer. Now there are about a million studies on
this statement. I not going to quote any.
3) Soy protein actually improves kidney function.
4) When soy was combined with a carbohydrate in comparison with casein. Lower bodyfat gains were
observed.
By the way I got the information and study off another site.. I didn't come up with this shit myself. =) Just thought it would be interesting. I have already ordered 5lbs of soy isolate, and am going to order 5lbs of casein in the next week. From what I have read, we are shortchanging ourselves by using only whey. Don't get me wrong, whey is good shit, but I think if you combine it w/ soy and casein especially, you will notice better gains.
Soy protein is made by extracting soy flour under
slightly alkaline PH followed by precipitation,
washing and drying. It offers excellent dispersibility.
By using this process soy yields a protein of over
90%, hence given the tittle of soy protein isolate. It
also has a high content of BCAA and glutamine and
arginine.
Analysis
Essential Amino Acid
Composition per 100
grams of protein
Protein 90%
Histidine 2.3
Isoleucine 4.3
Moisture 5.5%
Leucine 7.2 Lysine 5.5
Fat max 8%
Methionine 1.2 Phen 4.6
Fat (hydrolysis) max 4.5
Threonine 3.3
Tryptophan 1.1
Valine 4.4 Glutamine 16.8
*** Notice there are more aminos in soy protein isolate then in whey protein **
Bodybuilding and Athletic supplementation
description
Soy protein is quickly again becoming popular
amongst the bodybuilding community. The reason
RESEARCH! Here is what research has
discovered about soy isolate.
1. Soy fights cancer and has anti-estrogenic effects.
2. Soy has the highest amount of BCAA glutamine
and arginine.
3. Soy may raise the level of endogenous
production of thyroxin, which in turns speeds up
metabolism.
4. Daidzein, one of soy's isoflavones, may raise the
level of testosterone and growth hormone.
5. A diet rich in soy decreased the chance of heart
disease.
Soy protein is considered a must in a bodybuilders
diet. Due to extreme low cost, bodybuilders
experience great gains in muscle mass and decrease
in body fat.
** Sounds good right?? **
PER POUND
Soy protein BAD, I don't think so.
By Alex Rogers, Proteinfactory.com
Recently, an article was written by a certain Net Magazine, claiming that soy protein was a "Bad" Protein
to use if you were a bodybuilder looking to add lean muscle mass. The article concluded with the use of
research studies, that soy proteins' phytoestorgens actually lowered testosterone production in animal
studies. Hence lower testosterone levels, higher estrogen levels, no muscle gains.
But of course there are always two sides to the story, and I think I have a better case, jury listen up!!!
I would have to disagree, and nutritional experts agree, that soy protein is an excellent protein to use if
you're a bodybuilder using the protein to gain muscle mass. Here are a bunch of reasons.
Hormonal Studies
1)A study found that soy protein isolate (daidzein) may have a gender specific normalizing effect on
sex-hormone prduction. Male lab animals experienced greater testosterone and growth-hormone excretion
as well as muscle growth" This contradicts the study that found that genestein decreased testosterone
serum.
2)Another study found that soy may be actually antiestrogenic. . They may also act as antiestrogens by
competing for the binding sites of estrogen receptors or the active site of the estrogen biosynthesizing and
metabolizing enzymes, such as aromatase and estrogen-specific 17 beta-hydroxysteroid oxidoreductase
(type 1).
3)Probably the best research study contracting the one used by the author of "The bad protein" is this.
The phytoestrogens are only found in raw soy products. Not soy protein isolates, which are used as
protein supplements for bodybuilders.
"There are very little data on effects of phytoestrogens in males. Estrogenic effects in wildlife have been
described but the evidence for the role of phytoestrogens is indirect and seen under conditions of excessive
exposure."
And what is most interesting about this study is that it was conducted by one of the same researchers at the
same univeristy as the study that found genistein lowered testoserone serum levels. This researcher
concluded that even though he found genestein has estrogenic effects, it really cant be concluded because
of the above statement in his other reasearch findings. Hence, he found soy to be estrogenic, but it really
cant be "hard" evidence because there is not enough proof and it involves ridiculous conditions.
See what I mean by two sides to every story..
Positive Benefits of soy
1) The amino acid profile of soy is excellent. If you don't know by now the Glutamic Acid level is higher
than whey. Why? Mainly because it is a plant protein and not dairy.
2) Soy has been proven to lower heart disease risks and cancer. Now there are about a million studies on
this statement. I not going to quote any.
3) Soy protein actually improves kidney function.
4) When soy was combined with a carbohydrate in comparison with casein. Lower bodyfat gains were
observed.
By the way I got the information and study off another site.. I didn't come up with this shit myself. =) Just thought it would be interesting. I have already ordered 5lbs of soy isolate, and am going to order 5lbs of casein in the next week. From what I have read, we are shortchanging ourselves by using only whey. Don't get me wrong, whey is good shit, but I think if you combine it w/ soy and casein especially, you will notice better gains.
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