Exerpts from Articles Online
Most people remain unaware that soy is known to contain an array of potent chemical toxins. The modern manufacturing processes of high-profit industries make no effort to remove these potent toxins. High levels of phytic acid, trypsin inhibitors, toxic lysinoalanine and highly carcinogenic nitrosamines are all present in soy products…
Apparently scientists have known for years that the isoflavones in soy products can depress thyroid function and cause goiters in otherwise healthy children and adults. Researchers at Cornell University Medical College said that children who got soy formula were more likely to develop thyroid disease and that twice as many diabetic children had received soy formula in infancy as compared to non-diabetic children…
http://searchwarp.com/swa20340.htm - lots of information here
July of 2005 the Cornell University’s Program of breast Cancer and Environmental Risk factors warned that soy food consumption can increase breast cell multiplication, increasing risk for breast cancer…
In 2002, the British Committee on Toxicity of Chemicals in food, Consumer Products and Environment" which found no merit in most of the health claims of soy. They identified infants on soy formula, vegetarians who use soy as a primary source of protein, and adults trying to prevent disease with soy foods and soy supplements as all being at risk for thyroid damage…
This can be confusing since Asian peoples have used soy for centuries and many people believe this keeps them free of most Western diseases. But while Asians show lower rates of breast, prostate and colon cancers, they suffer higher rates of thyroid, pancreatic, liver, stomach and esophageal cancers…
Asians also eat different soy foods from the ones now appearing on American tables…miso, natto, temped, tofu, tamari and shoyu…instead of energy bars, soy shakes, soymik, veggie burgers, TVP chili and other meat or dairy substitutes…
http://www.fda.gov/fdac/features/2000/300_soy.html - FDA site even acknowledges the problem
No sooner had FDA proposed the health claim regulation, however, than concerns arose about certain components in soy products, particularly isoflavones. Resulting questions have engulfed the regulation in controversy…
This came as no surprise to Elizabeth A. Yetley, Ph.D., lead scientist for nutrition at FDA's Center for Food Safety and Applied Nutrition . "Every dietary health claim that has ever been published has had controversy," she says, "even the relationship of saturated fat to a healthy diet."..
Daniel Sheehan, Ph.D., director of the Estrogen Knowledge Base Program at FDA's National Center for Toxicological Research, also urges caution in consumption of soy isoflavones. In formal comments submitted to the public record of his own agency while FDA was reviewing the health claim, Sheehan, along with colleague Daniel Doerge, Ph.D., wrote, "While isoflavones may have beneficial effects at some ages or circumstances, this cannot be assumed to be true at all ages. Isoflavones are like other estrogens in that they are two-edged swords, conferring both benefits and risks."
Testimonial: there are lots like this one on the web
http://www.westonaprice.org/soy/complaints.html - affects of soy and hypothyroidism
These organizations have further background on soybean products, as well as recipes and dietary tips:
American Soybean Association
12125 Woodcrest Executive Drive
St. Louis, MO 63141
Soyfoods Association of North America
1723 U St., N.W.
Washington, DC 20009
United Soybean Board
424 Second Ave. West
Seattle, WA 98119