This landmark pig feeding study by Judy Carman and Howard Vlieger compared health outcomes in pigs fed a diet of GMO corn and soy versus a non-GMO diet over the standard commercial pig lifespan of 22.7 weeks. The study used 168 pigs (84 per group) raised under identical commercial farming conditions, making it one of the largest and most rigorous GMO feeding studies conducted on a commercially relevant animal species.
The GMO-fed pigs showed a significantly higher rate of severe stomach inflammation (32% vs 12% of non-GMO-fed pigs). The GMO-fed pigs also had significantly heavier uteri (25% larger by weight), suggesting a potential endocrine-disrupting effect. Both male and female GMO-fed pigs showed higher rates of stomach inflammation.
The study was significant because pigs have digestive systems similar to humans, making them a more relevant animal model than rodents for assessing the effects of GMO food on gut health.
Key Findings
- •32% of GMO-fed pigs had severe stomach inflammation compared to 12% of non-GMO-fed pigs.
- •Uteri of GMO-fed female pigs were 25% heavier, suggesting endocrine disruption.
- •Both male and female GMO-fed pigs showed elevated stomach inflammation.
- •The study used 168 pigs under real-world commercial conditions, giving it strong ecological validity.
- •Pigs are a more relevant model for human digestive health than commonly used rodents.
Methodology
Controlled feeding trial with 168 newly weaned pigs randomly assigned to GMO or non-GMO diet groups (84 per group). Pigs were raised under identical commercial conditions for 22.7 weeks. At slaughter, comprehensive veterinary examination included organ weights, stomach inflammation scoring (blind assessment), and histopathological analysis. Statistical analysis used chi-square tests and t-tests.
Why This Matters for Families
The dramatic difference in stomach inflammation between GMO-fed and non-GMO-fed pigs is directly relevant to the epidemic of digestive disorders in humans. If GMO feed causes stomach inflammation in pigs, there is strong reason to believe it may do the same in humans. Families dealing with digestive issues should try eliminating GMO foods from their diets.
Original Source
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