Herbicide Tolerance



"Buried Data in Monsanto's Study on Roundup Ready Soybeans"

Barbara Keeler
News Column
Whole Life Times
August 2000

How often have you heard that GE foods are extensively studied for safety? These "extensive" safety studies make an interesting read. The titles sound reassuring. For example: "The composition of glyphosate-tolerant [read Roundup Ready] soybean seeds is equivalent to that of conventional soybeans." That study was presented to the FDA in 1994 during the approval process for Roundup Ready Soybeans. Except that part of it was buried. And it failed to prove equivalence.

Even what Monsanto scientists presented to FDA and subsequently published in the JOURNAL OF NUTRITION shows significant differences between GE beans and controls in 3 of the 6 macronutrients measured and in one fatty acid. The researchers did not perform statistical analysis on even larger differences in Roundup Ready beans, such as 29% less choline. They found raw Roundup Ready meal contained 27% more trypsin inhibitor, an allergen that inhibits protein digestion, can retard growth in animals fed raw soybeans, and has been connected to enlarged cells in rat pancreases.

The most glaring flaw is a "file drawer" problem: the data on one out of 3 experiments, conducted on beans grown in Puerto Rico, was omitted from the published study and the data submitted to the FDA. In fact, none of the prominent dissenting scientists I consulted had seen the data on this experiment until I obtained it from journal archives and showed it to them.

In the unreported Puerto Rico trials, Roundup Ready beans were significantly lower in protein and the amino acid phenylalanine.

More disturbing were levels of the allergen trypsin inhibitor in toasted Roundup Ready meal, WHICH exceeded the highest levels per Levels were 18% higher in Roundup ready meal than in regular meal. And in the retoasted meal, levels of allergens called lectins In Roundup Ready beans almost doubled the levels in controls.

What might be the result of consuming foods with high levels of trypsin inhibitor and lectin? Well, maybe slower and lower growth, say scientists. And slower growth with less weight gain was observed in rats fed Roundup Ready beans. Cows eating Roundup Ready meal gave milk with higher levels of fat than controls. The improbable name of the feeding study is "The feeding value of soybeans fed to rats, chickens, catfish and dairy cattle is not altered by genetic incorporation of glyphosate [Roundup] tolerance." Go figure.

** NOTICE: In accordance with Title 17 U.S.C. Section 107, this material is distributed for research and educational purposes only. **



Last Updated on 11/5/00
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