Can PFAS from stain-resistant fabrics harm your liver during pregnancy?

What's actually in it

PFAS are in stain-resistant upholstery, water-repellent clothing, nonstick cookware, and food packaging. During pregnancy, a woman's liver works overtime to process hormones, nutrients, and waste for two bodies. PFAS accumulate in liver tissue and interfere with this critical organ at the worst possible time.

What the research says

A 2026 study in Environ Int combined data from a Chinese birth cohort with animal experiments and genetic analysis to understand how PFAS affect the liver during pregnancy. The researchers measured PFAS levels in pregnant women and tracked their liver function throughout pregnancy.

Women with higher PFAS exposure had worse liver function test results. The animal studies confirmed the mechanism: PFAS disrupted liver cell metabolism, altered bile acid production, and triggered inflammation in liver tissue.

The genetic analysis revealed which genes PFAS targets in the liver. The damage wasn't just temporary. The chemical changes in liver cells persisted even after the immediate exposure period, suggesting lasting effects.

Mixed PFAS exposure, the kind you get from real life where multiple PFAS hit your body at once, was worse than any single chemical alone. Your liver is trying to handle several different PFAS from your couch, your cookware, and your food packaging simultaneously. During pregnancy, when the liver is already under extra strain, this added burden can push liver function into an unhealthy range.