Robin Mesnage

Nicolas Defarge

Louis-Marie Rocque

Joël Spiroux de Vendômois

Gilles-Eric Séralini


Published: July 2, 2015

DOI: 10.1371/journal.pone.0128429



The quality of diets in rodent feeding trials is crucial. We describe the contamination with environmental pollutants of 13 laboratory rodent diets from 5 continents. Measurements were performed using accredited methodologies. All diets were contaminated with pesticides (1-6 out of 262 measured), heavy metals (2-3 out of 4, mostly lead and cadmium), PCDD/Fs (1-13 out of 17) and PCBs (5-15 out of 18). Out of 22 GMOs tested for, Roundup-tolerant GMOs were the most frequently detected, constituting up to 48% of the diet. The main pesticide detected was Roundup, with residues of glyphosate and AMPA in 9 of the 13 diets, up to 370 ppb. The levels correlated with the amount of Roundup-tolerant GMOs. Toxic effects of these pollutants on liver, neurodevelopment, and reproduction are documented. The sum of the hazard quotients of the pollutants in the diets (an estimator of risk with a threshold of 1) varied from 15.8 to 40.5. Thus the chronic consumption of these diets can be considered at risk. Efforts toward safer diets will improve the reliability of toxicity tests in biomedical research and regulatory toxicology.


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Barbara H. Peterson on June 28th, 2015

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Barbara H. Peterson on June 20th, 2015


Feed the World has set up the first ever validated glyphosate testing (LC/MS/MS) for the general public worldwide, which will be provided in the U.S. with the support of the Organic Consumers Association (OCA).

If you live in the U.S. and would like to test your urine, breast milk or tap water for glyphosate contamination please order and pay for the test in the form below.

If you live outside the U.S. you can send your urine or tap water samples (not breast milk) to the U.S. for testing, however our aim is to form partnerships with labs in your country to enable our validated testing to be made available to you at a cheaper price.

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Barbara H. Peterson on June 20th, 2015

Barbara H. Peterson

Farm Wars

My Internet service has been sketchy lately, so my ISP guys came out to see what the problem is. It appears that a tree has grown up right in my direct line of site to the wireless tower. That could explain it. So, we discussed options such as getting a taller pole, hiking several miles through the bush to locate the offending tree and chopping it down, attempting to find another location to point my antenna, and so on. But the thing that really struck me was that they mentioned that they could see everything on my property in detail from their office…

Google Earth. Yup. They can simply go to Google Earth, punch in my addy and lo and behold, there I am weeding the garden in the back, watering the geese, and quite possibly, taking a quick bathroom break behind the shed. Read the rest of this entry »

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