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USDA Drops Plan to Test for Monsanto Weed Killer in Food

The U.S. Department of Agriculture (USDA) has quietly dropped a plan to start testing food for residues of glyphosate, the world's most widely used weed killer and key ingredient in Monsanto's branded Roundup herbicides.

The agency spent the last year coordinating with the U.S. Environmental Protection Agency (EPA) and U.S. Food and Drug Administration (FDA) in preparation to start testing samples of corn syrup for glyphosate residues on April 1, according to internal agency documents obtained through Freedom of Information Act requests. Documents show that at least since January 2016 into January of this year, the glyphosate testing plan was moving forward. But when asked about the plan this week, a USDA spokesman said no glyphosate residue testing would be done at all by USDA this year.

The USDA's plan called for the collection and testing of 315 samples of corn syrup from around the U.S. from April through August, according to the documents. Researchers were also supposed to test for the AMPA metabolite, the documents state. AMPA (aminomethylphosphonic acid) is created as glyphosate breaks down. Measuring residues that include those from AMPA is important because AMPA is not a benign byproduct but carries its own set of safety concerns, scientists believe.