Nonstick Pan Chemicals Linked to Weaker Bones in Kids

CLIFF NOTES:

PFAS “forever chemicals” are common in everyday products, including nonstick cookware. A University of North Carolina–led research team reported that children with higher blood levels of a PFAS compound called PFOA had lower forearm bone density by age 12. The researchers said this could raise fracture risk during a critical growth period.

What happened in the study, and who conducted it?

In March, a research team led by the University of North Carolina published findings in the Journal of the Endocrine Society on PFAS exposure and bone density in children.

The study focused on perfluorooctanoic acid (PFOA), one of many PFAS compounds. The researchers also examined other PFAS chemicals—perfluorohexane sulfonic acid (PFHxS), perfluorooctane sulfonic acid (PFOS), and perfluorononanoic acid (PFNA)—but said results for those compounds were more variable.

What did researchers measure, and what did they find?

Researchers followed 218 children from a prospective pregnancy and birth cohort from birth through age 12.

They:

• Measured blood PFAS levels at birth, then again at ages 3, 8, and 12
• Assessed bone density using imaging technology

They reported that by age 12, children with higher PFOA levels showed lower forearm bone density than children with lower levels. Across every measurement point, higher PFOA concentrations were consistently associated with lower forearm bone density.

Why does forearm bone density matter?

The researchers highlighted the forearm because it reflects changes in cortical bone, described as the dense outer layer that forms the shaft of long bones. They said differences in forearm bone density between children with higher PFAS levels and those with lower levels could meaningfully increase the risk of forearm fractures.

What did the lead author say, and why does timing matter?

The study framed adolescence as a decisive window for building bone strength.

“Adolescence is a key period for building strong bones, and achieving optimal bone mass during this time can reduce lifelong risks of fractures and osteoporosis,” said Jessie P. Buckley, PhD, MPH, professor of epidemiology at the UNC Gillings School of Global Public Health, in a statement.

She added: “Our findings suggest reducing PFAS exposure during key developmental windows could support healthier bones throughout life.”

Were some children affected more than others?

Yes. The researchers reported that girls appeared more vulnerable than boys.

The study found the relationship between PFAS levels and lower forearm bone density was stronger among females, especially at age 12.

Why PFAS exposure is hard to avoid

The article notes PFAS are widespread in modern life, appearing in:

• Fish and foods grown from soil
• Drinking water
• Food packaging
• Cookware
• Many consumer products

The researchers pointed to a key exposure window that included the prenatal period and breastfeeding in infancy, making early-life exposure difficult to prevent through personal choices alone.

“These findings add to growing evidence that PFAS exposure during early life may carry long-term health consequences, underscoring the importance of efforts to reduce contamination in drinking water and consumer products,” Buckley said.

How experts say families can reduce PFAS exposure

The article describes several practical steps:

• Filter drinking water
• Choose PFAS-free cookware
• Avoid plastic food packaging when possible

It also notes a broader solution: policies that limit industrial PFAS use worldwide, so future generations face less baseline exposure.

How reverse osmosis and whole-home water conditioning relate to PFAS exposure

PFAS show up in drinking water in many communities, which is why water treatment is often discussed alongside exposure reduction. Drinking Reverse osmosis filtration systems and Whole-home PFAS filtration systems can help reduce certain contaminants in drinking water, supporting families who want another layer of control at the tap. Whole-home water conditioners address other water quality issues that affect daily use—bathing, laundry, and plumbing—helping households manage overall water performance alongside targeted filtration decisions.

Source: Food&Wine