55% of Sperm Samples Contained High Levels of Glyphosate Weedkiller

More than 55% of sperm samples from a French infertility clinic contained high levels of glyphosate, the world’s most common weedkiller, raising further questions about the chemical’s impact on reproductive health and overall safety, a new study found.

The new research also found evidence of impacts on DNA and a correlation between glyphosate levels and oxidative stress on seminal plasma, suggesting significant impacts on fertility and reproductive health.

Taken together, our results suggest a negative impact of glyphosate on human reproductive health and possibly on progeny,” the authors wrote.

The paper comes as researchers look for answers to why global fertility rates are dropping, and many suspect exposure to toxic chemicals like glyphosate is a significant driver of the decline.

Glyphosate is used on a wide range of food crops and in residential settings in the U.S.