PFAS Are Damaging Babies' Kidneys Before They're Born

PFAS exposure before and after birth is toxic to developing kidneys. A new study spells out exactly how it happens.

Kidney Damage Starts in the Womb

A 2026 study in Ecotoxicol Environ Saf reviewed both the mechanisms and the human evidence for PFAS developmental nephrotoxicity. Prenatal and early-life exposure to per- and polyfluoroalkyl substances damages kidneys during their most vulnerable period of growth.

Kidneys form during fetal development and continue maturing after birth. PFAS exposure during this window can alter kidney structure, reduce kidney size, and impair filtration function. These effects may set children up for kidney problems that last a lifetime.

A Growing Concern for Parents

PFAS cross the placenta. They're also found in breast milk. So babies are exposed both before and after birth. The study combined mechanistic data (how the damage happens at the cellular level) with epidemiological evidence (what's being seen in real populations of children).

What You Can Do

Filter your water with a system rated for PFAS removal, especially during pregnancy and early childhood. Avoid nonstick cookware and stain-resistant products. Choose PFAS-free baby bottles and feeding supplies. Browse non-toxic baby products for safer options.

Also see glass food storage for safer alternatives.

Source: Liu et al. (2026). Ecotoxicol Environ Saf.