Is PFAS exposure linked to liver damage?

What's actually in it

PFAS (per- and polyfluoroalkyl substances) are a group of man-made chemicals used to make products resist water, grease, and stains. They are often found in nonstick pans, food packaging, and waterproof gear. Because they don't break down easily, they build up in your body and the environment over time.

These chemicals are not just sitting on the surface of your products. They can move into your food and water, leading to long-term exposure. Recent science shows that these substances are not safe for your liver.

What the research says

A 2026 study in Environ Int found that exposure to PFAS during pregnancy affects maternal liver function. The researchers used human data and animal studies to confirm that these chemicals disrupt normal liver health.

Other research highlights the link between these chemicals and more severe outcomes. A 2026 study in Environ Pollut confirmed that PFAS can cause liver steatosis, which is the buildup of fat in the liver. Furthermore, a 2026 study in Environ Int used machine learning to link PFAS exposure to a higher risk of liver cancer.

This risk is also seen in real-world water supplies. A 2026 study in Environ Res looked at PFAS levels in drinking water in Florida and found exploratory links between these chemicals and liver cancer deaths in the region.