Glyphosate Exposure Linked to Spontaneous Preterm Birth

Researchers analyzed data from 1,450 women who delivered at NYU Langone-affiliated hospitals between 2016 and 2019. By tracking chemical levels during two distinct periods of pregnancy, the team identified a specific window of vulnerability: women with elevated glyphosate levels between 18 and 25 weeks were more likely to deliver before 37 weeks. Notably, this association did not appear in samples taken during the first trimester, nor was it linked to medically induced births caused by conditions like preeclampsia.

While the study does not establish direct causation, it contributes to the evidence regarding the health impacts of common herbicide residues found in cereals, fruits, and vegetables. With the CDC estimating that over 80 percent of Americans carry detectable levels of glyphosate, study authors argue that individual dietary choices—such as opting for organic produce—may be insufficient to eliminate exposure. Senior author Leonardo Trasande emphasized that the findings highlight a need for stricter environmental regulations, noting that the trade-off between current agricultural weed control and long-term maternal and infant health requires urgent re-evaluation.