Can PFAS from nonstick cookware raise blood pressure during pregnancy?

What's actually in it

PFAS from nonstick cookware, food packaging, and stain-resistant products build up in the bloodstream over years. These chemicals disrupt endothelial function, the ability of blood vessel walls to dilate and contract normally. They also affect the renin-angiotensin system, the hormone cascade that regulates blood pressure.

During pregnancy, blood pressure regulation is already stressed: blood volume increases by 50%, and the placenta creates new vascular demands. PFAS interference with vascular function is more consequential during this already-challenged period.

What the research says

A 2026 longitudinal study on blood pressure trajectories during pregnancy in relation to high PFAS exposure found that women with higher PFAS blood levels had higher blood pressure measurements across pregnancy, with the effect compounding over gestational weeks. The risk of pregnancy-induced hypertension increased with PFAS load.

Pregnancy-induced hypertension, if untreated, progresses to preeclampsia, a serious condition threatening both mother and baby. Finding a potentially modifiable environmental contributor to blood pressure elevation during pregnancy has direct clinical relevance.

Switching away from nonstick cookware before pregnancy and reducing PFAS exposure from food packaging are practical steps. PFAS body burden decreases slowly over years, so earlier lifestyle changes have more impact.