Can PFAS exposure from nonstick pans and water affect your thyroid cancer risk?
Some Concern
What's actually in it
PFAS from nonstick cookware, food packaging, and contaminated water accumulate in your blood. Your thyroid gland, which controls metabolism and energy, is especially sensitive to PFAS. These chemicals can interfere with thyroid hormone production and increase the risk of thyroid disease.
What the research says
A 2026 study in Environ Int from the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial measured serum PFAS and thyroxine levels and tracked thyroid cancer outcomes. The researchers found that higher PFAS levels were associated with altered thyroxine levels and increased thyroid cancer risk.
The thyroid gland concentrates certain chemicals from the blood, making it a target for PFAS. Disrupted thyroxine levels affect metabolism, energy, body temperature, and heart rate.
Reduce PFAS by using cast iron or stainless steel cookware, filtering your water, and avoiding stain-resistant treatments. Ask your doctor about thyroid screening if you have known PFAS exposure.
The research at a glance
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