A small pilot study by Rutgers University researchers detected estrogen-like mold toxins, known as mycotoxins, in all 20 pregnant participants. The study, published in the Journal of Exposure Science & Environmental Epidemiology on July 21, 2026, suggests that common foods like corn chips and popcorn may be sources of exposure.
The researchers analyzed urine samples from pregnant women in New Jersey and found zearalenone, a mycotoxin produced by Fusarium fungi, in every participant. Zearalenone mimics estrogen and has been linked to reproductive health issues in animal studies, though its effects on humans are still being investigated.
Lead author Dr. Emily Barrett, a professor at Rutgers School of Public Health, stated that the findings highlight the need for more research on dietary exposure during pregnancy. The study is among the first to measure these toxins in a U.S. pregnant population.
Experts note that mycotoxins can contaminate corn and other grains before harvest or during storage. While the study was small and not designed to assess health risks, it raises questions about food safety standards for vulnerable groups.
