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Among a sample of older adults living in Southern California, average urine levels of the herbicide glyphosate and its metabolite increased between 1993 and 2016, as did the proportion of samples with detectable levels, according to a study published by JAMA.
Glyphosate, the primary ingredient in a herbicide sprayed onto genetically modified crops, is found in these crops at harvest. Genetically modified crops were introduced in the United States in 1994. Environmental exposure through dietary intake of these crops has potential adverse health effects and can be assessed by measuring urinary excretion.
Paul - J - Mills - PhD - University
Paul J. Mills, Ph.D., of the University of California, San Diego, and colleagues measured excretion levels of glyphosate and its metabolite aminomethylphosphonic acid (AMPA) in participants from the Rancho Bernardo Study of Healthy Aging. Among the participants in the study, 112 had routine morning spot urinary biospecimens obtained at each of five clinic visits that took place from 1993 to 1996 and from 2014 to 2016. One hundred of these 112 were randomly selected for this study (average age in 2014-2016 was 78 years; 60 percent were women).
The researchers found that the average glyphosate level...
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