Something in the GM Soy Diet Was ‘Wrecking the Ovary and Endometrium’ of the Rats
September 29th, 2010
The opening words of the piece below are, “If you’re still eating genetically modified (GM) soybeans…”
People might read the article and think, “I don’t eat genetically modified soybeans, so this doesn’t apply to me.”
If you’re eating any industrial/feedlot/factory meat, you’re eating genetically modified soybeans. It’s in the feed that the animals are given. Chicken feed has the highest amount of soy added of all the livestock feeds. (FYI: Raw soybeans are poisonous for chickens. They have to be cooked to make the soy protein usable by chickens.)
Additives made from genetically modified soybeans are present in most conventional processed foods.
In other words, unless you’re making a conscious effort to avoid GM soybeans and the foods that contain them, including industrial/feedlot/factory meats, you’re eating a GM soy diet.
Via: Huffington Post:
If you’re still eating genetically modified (GM) soybeans and you plan on having kids, a Brazilian study may make you think again about what you put in your mouth. Female rats fed GM soy for 15 months showed significant changes in their uterus and reproductive cycle, compared to rats fed organic soy or those raised without soy. Published in The Anatomical Record in 2009, this finding adds to the mounting body of evidence suggesting that GM foods contribute to reproductive disorders (see summary at end).
Unlike women whose menstrual cycle starts automatically at puberty, female rats need to be “inspired.” Their (estrous) cycle conveniently kicks in only after being introduced to male rats. Since no males were present in this study, the females fed organic soy or no soy were appropriately untriggered (diestrus). For some odd reason, however, those fed GM soy appeared to have their ovulation cycle in full gear.
Although the researchers did not perform a check on the estrous cycle directly, their microscopic analysis of ovaries and uterus tissue showed that the hormone-induced changes (i.e. early ovulation and formation of corpus luteum) were well underway. In addition, the lining of the uterus (endometriim) had more cells than normal and the glands were dilated. In simpler terms, according to senior UK pathologist Stanley Ewen, something in the GM soy diet was “wrecking the ovary and endometrium” of the rats.
Genetically modified soybeans are called Roundup Ready. They are inserted with a bacterial gene, which allows the plants to survive a normally deadly dose of Roundup herbicide. Although the spray doesn’t kill the plant, its active ingredient called glyphosate does accumulate in the beans themselves, which are consumed by rats, livestock, and humans. There is so much glyphosate in GM soybeans, when they were introduced Europe had to increase their allowable residue levels by 200 fold.
Although there is only a handful of studies on the safety of GM soybeans, there is considerable evidence that glyphosate—especially in conjunction with the other ingredients in Roundup—wreaks havoc with the endocrine and reproductive systems. “I think the concentration of glyphosate in the soybeans is the likely cause of the problem,” says Ewen.
Glyphosate throws off the delicate hormonal balance that governs the whole reproductive cycle. “It’s an endocrine buster,” says Ewen, “that interferes with aromatase, which produces estrogen.” Aromatase is required by luteal cells to produce hormones for the normal menstrual cycle, but it’s those luteal cells that have shown considerable alterations in the rats fed GM soybeans.
Related: Glyphosate Herbicide Could Cause Brain, Intestinal and Heart Defects in Fetuses