Guest guest Posted August 1, 2008 Report Share Posted August 1, 2008 Several years ago I expounded at length on this list about the benefits of a paleolithic diet. A paleo-diet prohibits soy because one cannot consume soy in its raw state. Unprocessed soy causes terrible digestion problems. On this paleo view of proper diet, which I endorse, one ought not consume anything that one cannot consume raw. Note that I do mean to say that I believe one ought consume only cooked foods. I have no problem with cooked foods. I mean only that one ought to avoid foods that one cannot consume raw. As such, a paleo diet includes only meat, fish, fowl, eggs, vegetables, fruits and nuts. As a legume, soy does not qualify. In the years since I advocated this paleo-diet idea here on this list, quite a lot of research has turned up to support the hypothesis. Anyway I thought I should chime in to state my vote in favor of the idea that soy consumption does not seem like a good idea. That's the least I can do. After all I own this discussion list. I'm the guy at the bottom of each message who says, " This forum is for discussion of health related subjects but under no circumstances [blah blah blah]. " Sorry about my absence in the last couple of years. I have a busy life. -gts > From: stardora@... <stardora@...> > Subject: Compounds From Soy Affect Brain And Reproductive Development > Undisclosed-Recipient@... > Cc: " AAR " <AntiAgingResearch >, Longevity > Date: Friday, August 1, 2008, 12:46 PM > Compounds From Soy Affect Brain And Reproductive Development > http://www.sciencedaily.com/releases/2008/07/080731140030.htm > ScienceDaily (Aug. 1, 2008) - Two hormone-like compounds > linked to the consumption of soy-based foods can cause > irreversible changes in the structure of the brain, > resulting in early-onset puberty and symptoms of advanced > menopause in research animals, according to a new study by > researchers at North Carolina State University. > > The study is a breakthrough in determining how these > compounds can cause reproductive health problems, as well as > in providing a key building block for how to treat these > problems. > > The study is the first to show that the actual physical > organization of a region of the brain that is important for > female reproduction can be significantly altered by exposure > to phytoestrogens - or plant-produced chemicals that mimic > hormones - during development. Specifically, the study finds > that the compounds alter the sex-specific organization of > the hypothalamus - a brain region that is essential to the > regulation of puberty and ovulation. The study also shows > that the phytoestrogens could cause long-term effects on the > female reproductive system. > > While the study examined the impact of these compounds on > laboratory rats, neurotoxicologist Dr. Patisaul - > who co-authored the study - says the affected > " circuitry " of the brain is similar in both rats > and humans. Patisaul is an assistant professor in NC > State's Department of Zoology. Her co-author is > Bateman, a doctoral student in the department. > > Patisaul says this finding is extremely important because, > while the changes in brain structure cannot be reversed, > " if you understand what is broken, you may be able to > treat it. " Patisaul says she is in the process of > evaluating the effects of these compounds on the ovaries > themselves. > > Patisaul says that this study is also " a step towards > ascertaining the effects of phytoestrogens on developing > fetuses and newborns. " Patisaul adds that these > phytoestrogenic compounds cross the placental barrier in > humans and that, while many people are concerned about the > effects of man-made compounds on human health, it is > important to note that some naturally occurring substances > can have similar effects. > > In the study, which will be published in an upcoming issue > of Neurotoxicology, the researchers exposed newborn rats to > physiologically relevant doses of the phytoestrogens > genistein and equol, and then looked at reproductive health > markers in the rats throughout their adulthood. The neonatal > stage of development in rats is comparable to the latter > stages of pregnancy for humans, Patisaul says. Genistein is > a phytoestrogen that is found in various plants, including > soybeans and soy-based foods. Equol is a hormone-like > compound that is formed when bacteria found in the digestive > system metabolize another phytoestrogen. However, only > approximately a third of humans have the necessary bacteria > to produce equol. > > The study shows that both genistein and equol result in the > early disruption of the rats' estrus cycle - which would > be corollary to early onset of menopause in a human. The > study also showed that genistein caused the early onset of > puberty. The disruption of the estrus cycle could stem from > problems with the brain or the ovaries, so the researchers > decided to determine if the compounds had any effect on > brain development or function. > > Patisaul explains that the brains of both female rats and > female humans have a region that regulates ovulation. > " That part of the brain, " Patisaul says, " is > organized by hormones during development - which is the > neonatal stage for rats and during gestation for > humans. " Patisaul says the new study shows that the > female brain is " critically sensitive " to > genistein and equol during this crucial stage of development > - and that this may indicate that the brain is also > especially sensitive during this period to all > phytoestrogens and possibly other man-made chemicals, such > as bisphenol-A. > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 1, 2008 Report Share Posted August 1, 2008 OK, Gordon. That means no rhubarb, right? A lot of my friends would be upset with this exclusion. Gordon Swobe wrote: > Several years ago I expounded at length on this list about the > benefits of a paleolithic diet. A paleo-diet prohibits soy because one > cannot consume soy in its raw state. Unprocessed soy causes terrible > digestion problems. > > On this paleo view of proper diet, which I endorse, one ought not > consume anything that one cannot consume raw. > > Note that I do mean to say that I believe one ought consume only > cooked foods. I have no problem with cooked foods. I mean only that > one ought to avoid foods that one cannot consume raw. > > -gts > > Quote Link to comment Share on other sites More sharing options...
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