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Genetically Modified Foods Already Linked to Reduced Fertility
Genetically engineered (GE) corn and soy have already been shown to reduce fertility in animals, and glyphosate, the active ingredient in Monsanto’s weed killer Roundup, which is heavily used on GE crops, has also been shown to alter fertility.
For example, female rats fed GE (Roundup Ready) soy for 15 months showed significant changes in their uterus and reproductive cycle, compared to rats fed organic soy or those raised without soy. According to researchers, if women experience similar changes in the uterus lining and altered hormonal levels, it might increase the risk of retrograde menstruation, in which menstrual discharge travels backwards into your body rather than through your uterus. This can cause a disease known as endometriosis, which may lead to infertility.
The disorder can also produce pelvic and leg pain, gastrointestinal problems, chronic fatigue, and a wide variety of other symptoms. Genetically modified soybeans are called Roundup Ready.
They contain a bacterial gene that allows the plants to survive a normally deadly dose of Roundup herbicide. Although the spray doesn’t kill the plant, its active ingredient, glyphosate, actually accumulates in the beans themselves, which are then consumed by livestock and humans. There is actually so much glyphosate in GE soybeans that when they were introduced, Europe had to increase their allowable residue levels 200-fold!
Glyphosate Poses Risk to Female Reproductive Health
Although there are only a handful of studies on the safety of GE soybeans, there is considerable evidence that glyphosate—especially in conjunction with the other ingredients in Roundup—wreaks havoc with the endocrine and reproductive systems.
Glyphosate throws off the delicate hormonal balance that governs the whole reproductive cycle. It interferes with aromatase, which produces estrogen, and it’s also highly toxic to the placenta in pregnant women. In a 2009 French study, scientists discovered that glyphosate can kill the cells in the outer layer of the human placenta (the trophoblast membrane), which in turn can kill the placenta. A mere 1/500th the amount needed to kill weeds was able to kill these cells! The amount is so small, according to the study’s authors, that the “residual levels to be expected, especially in food and feed derived from Roundup formulation-treated crops” could be enough to “cause cell damage and even [cell] death.”