A Long-Term Toxicology Study On Pigs Fed A Combined Genetically Modified (GM) Soy And GM Maize Diet, Journal of Organic Systems, 2013
There were two unusual findings in this study. First, the GM-fed female pigs had heavier wombs, indicating a diseased state:
"In this study, we found that female pigs fed the GM diet had median uterine weights that were 25% greater than non-GM-fed pigs (p=0.025). ... Such a biologically significant difference in uterine weights may reflect endometrial hyperplasia or carcinoma, endometritis, endometriosis, adenomyosis, inflammation, a thickening of the myometrium, or the presence of polyps."
|Top photo from a non-GM-fed pig, bottom from a GM-fed pig.|
"Pigs fed the mixed GM soy and GM corn diet showed 2.6 times the rate of severe stomach inflammation compared to non-GM fed pigs. This biologically significant finding was statistically significant (p=0.004). GM-fed male pigs showed severe stomach inflammation at a rate of 4.0 times that of the non GM fed male pigs (p=0.041); and female pigs showed a rate of severe stomach inflammation that was 2.2 the rate of the non-GM fed female pigs (p=0.034).The study is notable for its use of pigs, which the authors state have a similar gastrointestinal tract to that of humans, and for its use of a GM soy and corn mix which "is widely consumed by people, particularly in the USA."
We found severe stomach inflammation in 22.2% of male pigs fed the GM diet and in 41.7% of female pigs fed the GM diet (compared to 5.6% and 18.9%, respectively, in pigs fed the non-GM diet.
One explanation for the inflammation results could lie with the proteins that these GM corn varieties are engineered to produce. They act as insecticides by inducing pore formation and disintegration of the gut tissue of certain grubs that attack corn plants."
A Long-Term Toxicology Study On Pigs Fed A Mixed GM Diet. Adverse Effects Of GM Crops Found., Study summary by lead author Dr. Judy Carman, 11 June 2013
The Problem With The Safety Of Roundup Ready Soybeans, Judy Carman, MPH, PhD Flinders University.