Can PFAS exposure during pregnancy increase the risk of gestational diabetes?

What's actually in it

PFAS from nonstick cookware, food packaging, stain-resistant fabrics, and contaminated water are absorbed daily by everyone, including pregnant women. These chemicals interfere with insulin signaling and glucose metabolism, two systems that pregnancy already pushes to their limits.

Gestational diabetes affects about 1 in 10 pregnancies in the US and raises the risk of complications for both mother and baby.

What the research says

A 2026 study from the Environmental Influences on Child Health Outcomes (ECHO) program published in Environ Health Perspect examined PFAS exposure and gestational diabetes across multiple study sites. The large sample size gave the results strong statistical power.

Women with higher blood levels of PFOS, PFOA, and PFHxS had an elevated risk of developing gestational diabetes. The association was strongest for PFOS, with women in the highest exposure group facing a clearly higher risk than those with the lowest levels.

PFAS disrupted pancreatic beta cell function (the cells that make insulin) and increased insulin resistance in peripheral tissues. During pregnancy, when the body naturally becomes more insulin-resistant to direct glucose to the baby, PFAS pushed the system past its tipping point.

Gestational diabetes increases the risk of preeclampsia, cesarean delivery, macrosomia (oversized baby), and type 2 diabetes later in life for both mother and child.

Switch to ceramic or stainless steel cookware, filter your tap water, and avoid grease-resistant food packaging before and during pregnancy.