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Medical Forum / General / Nutrition / June 2004question regarding soy neurotoxicity and vitamin e derived from soy
I am trying to avoid vitamin e capsules that contain gelatin because of BSE concerns, but the only ones that I can find are derived from soy. Given that there is some preliminary evidence to suggest that soy products may cause dementia in males, I am wondering if vitamin E derived from soy products would carry the same potential risk. I am trying to moderate soy consumption until something more definative is found. Thanks in advance. > I am trying to avoid vitamin e capsules that contain gelatin because of BSE > concerns, but the only ones that I can find are derived from soy. Given > that there is some preliminary evidence to suggest that soy products may > cause dementia in males, I am wondering if vitamin E derived from soy > products would carry the same potential risk. I am trying to moderate soy > consumption until something more definative is found. Thanks in advance. The same potential risk as what? The soy-dementia connection is apparently just a guess at this point. You cannot compare undefined risks. http://www.veganoutreach.org/health/soysafe.html -- Joe Legris the same neurotoxic risks that may be linked to eating soy products. > the same neurotoxic risks that may be linked to eating soy products. There is insufficient evidence to assign a risk. It is possible that soy products actually prevent dementia. Don't worry so much - chronic stress may damage your brain too. -- Joe Legris This risk is non-existent will the materials needed to make capsule from soy based materials. > the same neurotoxic risks that may be linked to eating soy products. damned typos corected version "William A. Noyes" This risk is non-existent with the small amounts of materials needed to make capsules from soy based materials. > > the same neurotoxic risks that may be linked to eating soy products. Here's some research I've found on soy: ? In 1991, Japanese researchers reported that consumption of as little as 30 grams (approx. 2 tablespoons) of soybeans per day for a one month resulted in a significant increase in thyroid stimulating hormone. ? Soy consumption has been linked to numerous disorders, including infertility, increased cancer, and infantile leukemia; and, in studies done dating back to the 1950s, that genistein (the isoflavone in soy) causes endocrine disruption in animals. ? In 1992 the Swiss health service estimated that 100 grams of soy protein provided the estrogenic equivalent of the pill. ? The 1996 Puerto Rico Premature Thelarche study, found the most significant dietary association with premature sexual development was not chicken- as reported in the press- but soy formula. ? In1998 the New Zealand government had issued a health warning about soy infant formula, but although the FDA called for safety specifications and monitoring, they have never been performed. ? Genistein exerts estrogen-like effects in male mouse reproductive tract. ? There is a significant statistical relationship between two or more servings tofu (soy) per week and "accelerated brain aging", and tofu eaters look five years older ? Mothers who eat a vegetarian diet during pregnancy (greater exposure to phytoestrogens in soy foods popular with vegetarians) has a fivefold greater risk of delivering a boy with hyposadias, a birth defect of the penis. To your health, lisaREMOVETHIShangs@sasktel.net www.lisah.awarenesslife.com > damned typos > corected version > "William A. Noyes" This risk is non-existent with the small amounts > of materials needed to make capsules from soy based materials. > > > > the same neurotoxic risks that may be linked to eating soy products. Lisa why don't you post the Pubmed abstract numbers for us since you say you did the research. Anything from that source? > Here's some research I've found on soy: > [quoted text clipped - 31 lines] > > > > > > the same neurotoxic risks that may be linked to eating soy products. William, here are a couple of articles I came across. I'm not familiar with the Pubmed abstract numbers however. Hope this is helpful: 1) JAMA Vol.288, No. 3, July 17, 2002 2) Tragedy and Hype: The 3rd International Soy Symposium- Part II 3) G Matrone et al, Effect of Genistin on Growth and Development of the Male Mouse, Journal of Nutrition, 1956, 235-240. 4) A Cassidy, et al. Biological Effects of a Diet of Soy.... American J. of Clinical Nutrition, 1994, 60: 333-340. 5) K D setchell et al, Isoflavone content of infant formulas and the metabolic fate of these early phytoestrogens in early life, Amer. J. of clinicial Nutrition, Dec. 2998 Supplement 1453S-1461S. 6) Menopausal Estrogen and Estrogen-Progestin Replacement Therapy and Breast Cancer Risk. JAMA 200, 283:485-491. 7) Allred, C.D. et al. Soy diets containing varying amounts of genistein stimulate growth of estrogen-dependent (MCF-7) tumors in a dose-dependent manner. Cancer Research 61, 5045-5050, July 1, 2001. I've compiled the info I posted from these sources and some from others. lisa > Lisa why don't you post the Pubmed abstract numbers for us since > you say you did the research. Anything from that source? [quoted text clipped - 39 lines] > > > > > > > > the same neurotoxic risks that may be linked to eating soy products. In sci.med.nutrition Lisa Hangs <lisa.hangsATsasktel.net> wrote or quoted: > William, here are a couple of articles I came across. I'm not familiar with > the Pubmed abstract numbers however. > Hope this is helpful: > 1) JAMA Vol.288, No. 3, July 17, 2002 [quoted text clipped - 11 lines] > stimulate growth of estrogen-dependent (MCF-7) tumors in a dose-dependent > manner. Cancer Research 61, 5045-5050, July 1, 2001. 2 is: http://www.westonaprice.org/soy/tragedy.html 3 is: http://calorierestriction.org/pmid/?n=13346413 5 is: http://calorierestriction.org/pmid/?n=9848516 7 is: http://calorierestriction.org/pmid/?n=11431339  Signature__________ |im |yler http://timtyler.org/ tim@tt1lock.org Remove lock to reply. Joe Legris wrote... > The same potential risk as what? The soy-dementia connection is > apparently just a guess at this point. You cannot compare undefined risks. > > http://www.veganoutreach.org/health/soysafe.html Thanks for the link. Virginia and Mark have done a good job of summarizing and analyzing the issues. I hope the anti-soy people will at least read and consider their arguments. SignatureJohn de Hoog http://dehoog.org is there really a group of people that are anti-soy? it seems that there are much more pressings things to be angry about. Although it does seem that some of the people here are very much pro-soy--almost to the point of sounding a bit defensive when a question is asked! :) > is there really a group of people that are anti-soy? it seems that there > are much more pressings things to be angry about. Although it does seem > that some of the people here are very much pro-soy--almost to the point of > sounding a bit defensive when a question is asked! :) There are both and those in between. Here's some research I've found on soy: ? In 1991, Japanese researchers reported that consumption of as little as 30 grams (approx. 2 tablespoons) of soybeans per day for a one month resulted in a significant increase in thyroid stimulating hormone. ? Soy consumption has been linked to numerous disorders, including infertility, increased cancer, and infantile leukemia; and, in studies done dating back to the 1950s, that genistein (the isoflavone in soy) causes endocrine disruption in animals. ? In 1992 the Swiss health service estimated that 100 grams of soy protein provided the estrogenic equivalent of the pill. ? The 1996 Puerto Rico Premature Thelarche study, found the most significant dietary association with premature sexual development was not chicken- as reported in the press- but soy formula. ? In1998 the New Zealand government had issued a health warning about soy infant formula, but although the FDA called for safety specifications and monitoring, they have never been performed. ? Genistein exerts estrogen-like effects in male mouse reproductive tract. ? There is a significant statistical relationship between two or more servings tofu (soy) per week and "accelerated brain aging", and tofu eaters look five years older ? Mothers who eat a vegetarian diet during pregnancy (greater exposure to phytoestrogens in soy foods popular with vegetarians) has a fivefold greater risk of delivering a boy with hyposadias, a birth defect of the penis. To your health, lisaREMOVETHIShangs@sasktel.net www.lisah.awarenesslife.com > > is there really a group of people that are anti-soy? it seems that there > > are much more pressings things to be angry about. Although it does seem > > that some of the people here are very much pro-soy--almost to the point of > > sounding a bit defensive when a question is asked! :) > > There are both and those in between. |
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