Sonos wrote:

Thanks for this article. I found it interesting and posted it to a thread
discussing soy and cardiovascular health on our website. I can tell you from
personal experience that incorporating the entire soybean into the nutrition
portfolio is more effective at improving lipid profiles, modulating serum
glucose, and lowering blood pressure than drinking processed soy products
such as milk and tofu. These products, for example, are missing the fiber,
or 'Okara' which has been found in some clinical studies to be superior at
lowering LDL than grain fibers. Anyway, thanks again for the post.

http://www.sonoscore.com/index.php?s...st=0&#entry280

That isn't all soy can do, especially in young boys and even in adult males.
Over-consumption of soy products can lead to feminizing since soy is rich in
phyto-estrogens. There are some studies on such effects of soy.

Rat pups, exposed to high doses of the plant estrogen coumestrol
(found in sunflower seeds and oil and alfalfa sprouts) through
their mother's milk, suffered permanent reproductive problems:
female pups when grown did not ovulate, and males had altered
mounting behavior and fewer ejaculations (2).
[Whitten, P., C. Lewis and F. Naftolin. 1993. A Phytoestrogen
diet induces the premature anovulatory syndrome in lactationally
exposed female rats. Biology of Reproduction 49:1117-21.]

Neonatal and immature rats exposed to coumestrol experienced
estrogen-related responses, such as premature estrous cycles.
Coumestrol also interrupted ovarian cycles in adult female rats
(3).
[Barrett, J. 1996. Phytoestrogens: Friends or Foes?
Environmental Health Perspectives 104:478-82.]

Newborn rats exposed to the phytoestrogen genistein (a compound
found in soy products), experienced altered hormone secretions
and the onset of puberty may have been delayed because female
rats were exposed to the compound as fetuses (3).
[Ibid.]

“In males, levels of 17B-estradiol and testosterone were not
affected, but levels of 3a, 17B- androstanediol glucuronide (a
metabolite of dihydrotestosterone) and dehydroepiandrosterone
sulfate were decreased by 13% and 14%, respectively, after 2-4
weeks of daily soya ingestion.”
[Supported by USPHS CA56273, CA65628, CA45181, John Sealy
Memorial Endowment Fund for Biomedical Research, American
Institute for Cancer Research grant 95B119, and NIH NCRR GCRC
grant M01 RR00073]

All above lifted from:
http://www.cheapbodybuildingsuppleme...estrogen.shtml

Additionally, see:
http://www.t-mag.com/articles/185soy.html
http://www.bodybuilding.com/fun/satter6.htm