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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Barbara H. Peterson on June 16th, 2015

China GMO Petition

Barbara H. Peterson

Farm Wars

The Chinese Ministry of Agriculture is in bed with Monsanto. This clandestine relationship is being exposed through the tireless efforts of “over six hundred individuals from different fields and locations in China,” who have submitted a petition to end the takeover.

GMOs (genetically modified/engineered organisms) in China are regulated by the Ministry of Agriculture, and the future that this department has in store for the people of China is anything but organic and healthy:

The agriculture biotech industry is supported by the central government of the People’s Republic of China (PRC or China) as an emerging sector of strategic importance.[1]  According to China’s 12th Five-Year Plan on National Economic and Social Development for 2011–2015 (12th Five-year Plan), the country will “speed up the innovation and application of biotechnology breeding in agriculture,” “develop new biological variety with important application value and independent intellectual property rights,” and “foster a large and strong modern seed industry.”[2] 

Based on the 12th Five-year Plan and other plans supplementing it, the Ministry of Agriculture (MOA) released the 12th Five-Year Plan for Development of Agricultural Science and Technology (Agricultural S&T Plan), which provides more details on the development of agricultural science and technology.  In this Plan, the MOA proposes to strengthen research involving genetically modified organisms (GMOs).[3]  Major research projects on breeding new varieties of GMOs will continue to be carried out in the 2011–2015 period, according to the Agricultural S&T Plan.[4]  The plans also incorporate biosafety assessment and management as focus areas of biotech industry development.[5]

The people’s response to this collusion of the government of China with the biotech industry:

The petition letter submitted by over six hundred individuals from different fields and locations in China to the State Council Legislative Affairs Office regarding revisions proposed by the Ministry of Agriculture to their “Agricultural GMOs Safety Evaluation Administration Methods”

Submitted on May 23, 2015


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Barbara H. Peterson on June 15th, 2015

LabDiet with Glyphosate

Barbara H. Peterson

Jon Abrahamson

Farm Wars

Purina LabDiets, the laboratory diets used exclusively by scientists around the world for toxicology testing are contaminated by Glyphosate. What does this mean? It means that each and every toxicological study ever conducted that has used this feed for its studies is null and void ever since the introduction and widespread use of the herbicide, Glyphosate.

In an exclusive interview with Dr. Anthony Samsel, I asked if this was the feed used most by the scientific community at large. He had this to say:

Yes almost exclusively and yes, these are the standard lab diets for rats, mice, rabbits, and other rodents.  That’s why I tested these 3 formulations.  The Purina diets were used in all of the Monsanto studies.  However, that was before they were using glyphosate on food and grain crops.  So, all of the findings in the Monsanto secret studies are still valid, with the exception of the organophosphate pesticide contamination known to be used at the time as residues on crop ingredients. Their presence could have been enhanced by the glyphosate which was then being tested.”  


However, since the inception of the use of glyphosate on GM crops and the use of it for desiccation, the picture has changed by its presence in lab chow diets and this is very problematic.  Glyphosate is a synergist with other chemicals, a chelator and a hormone at low levels, so results that have been seen in recent years have definitely been influenced by the presence of glyphosate residues in animal studies using these chows.  

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