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Which protein from Proteinfactory.com is the best?
- Thread starter -SD-
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StoneColdGold said:
Ok, what is wrong with soy? I has been proven over and over again in studies to have many benefits. Ofcourse it has a low BV, but that is why it should not be the sole protein supplemented but in a stack.
Some have purpotrated that soy looks like an estrogen molecule and can act as a estrogen in the human male body, but studies actually reveal that soy may act much like nolvadex and actually occupy the estrogen receptor site leading to less water retention. And that is on top of the greatly reduced chance of cancer as well as cardiac benefits. So again why not use it in a stack?
musclebrains
New member
i buy their ion exchange whey isolate. It blends easier than any protein I've ever used and has never caused me any stomach problems. you can easily mix 60 grams into 8 ounces of water and gulp it (though it tastes fine).
What's the advantage in blending proteins?
What's the advantage in blending proteins?
StoneColdGold
New member
i'll try to find the info on soy and post it....
StoneColdGold
New member
Here are some quotes:
"Unfortunately, soy protein contains two rather significant "unfriendly" phytoestrogens, both of which appear to have estrogenic activity. They are called genistein and diadzein....
One (study) in particular, using mice, found genistein (2.5 mg/kg of bodyweight for nine days) to result in reduced testicular and serum testosterone concentrations, in addition to a reduced amount of luteinizing hormone in the pituitary.(1) They concluded that genistein, when given to adult males, "induced typical estrogenic effects in doses comparable to those present in soy-based diets."
"Another found that a soy and alfalfa-free diet with a 0.1% concentration of genistein decreased the rate of bodyweight gain in Sprague-Dawley rats and a marginal decrease in prostate weight.(2) (Although avoiding prostate hypertrophy is a good thing in adults, a decrease in prostate weight is indicative of feminizing effects.) The scientists concluded that scientists who do endocrine toxicology studies should use phytoestrogen-free diets, lest the phytoestrogens interact with manmade chemicals and screw up the results.
Others found more serious problems. One cited "significant testicular cell death" when genistein was administered.(3) They noted that while sodium azide, a highly toxic chemical that's a potent vasodilator, killed testicular cells by inducing necrotic death, genistein killed them by inducing apoptoic death (in essence, fragmentation of the cells)—a small distinction, in my book. This sperm death may be a result of their inability to repair themselves. (4)"
"Let's consider soy's affects on T production first. The ability of soy protein to decrease Testosterone levels has been well demonstrated. One study displayed a 76% reduction of Testosterone production in men, after ingestion of soy protein over a brief period of time.(4) In yet another study, an inverse association was found between soy protein intake and Testosterone levels in Japanese men.(5)"
"Unfortunately, soy protein contains two rather significant "unfriendly" phytoestrogens, both of which appear to have estrogenic activity. They are called genistein and diadzein....
One (study) in particular, using mice, found genistein (2.5 mg/kg of bodyweight for nine days) to result in reduced testicular and serum testosterone concentrations, in addition to a reduced amount of luteinizing hormone in the pituitary.(1) They concluded that genistein, when given to adult males, "induced typical estrogenic effects in doses comparable to those present in soy-based diets."
"Another found that a soy and alfalfa-free diet with a 0.1% concentration of genistein decreased the rate of bodyweight gain in Sprague-Dawley rats and a marginal decrease in prostate weight.(2) (Although avoiding prostate hypertrophy is a good thing in adults, a decrease in prostate weight is indicative of feminizing effects.) The scientists concluded that scientists who do endocrine toxicology studies should use phytoestrogen-free diets, lest the phytoestrogens interact with manmade chemicals and screw up the results.
Others found more serious problems. One cited "significant testicular cell death" when genistein was administered.(3) They noted that while sodium azide, a highly toxic chemical that's a potent vasodilator, killed testicular cells by inducing necrotic death, genistein killed them by inducing apoptoic death (in essence, fragmentation of the cells)—a small distinction, in my book. This sperm death may be a result of their inability to repair themselves. (4)"
"Let's consider soy's affects on T production first. The ability of soy protein to decrease Testosterone levels has been well demonstrated. One study displayed a 76% reduction of Testosterone production in men, after ingestion of soy protein over a brief period of time.(4) In yet another study, an inverse association was found between soy protein intake and Testosterone levels in Japanese men.(5)"
StoneColdGold said:
I have read some other studies that say that the studies that claim that soy is bad are bullshit. I don't really know but I'm not convinced that it is bad for you.
I actually do use more than just the penta pro. I use a custom blend for post workout which is fast acting proteins. I take caseinate before bed. It does make sense to keep absorbtion rates in mind.
