Non-Stick Pan Coatings Linked to Thyroid and Liver Disruption
This is an editorial summary of research originally reported by The Lancet Diabetes & Endocrinology. ProductSafer does not claim ownership of the underlying research. All intellectual property belongs to the original publishers.
PFAS chemicals used in Teflon and similar non-stick coatings have been found to persist in the human body for years, with studies linking them to thyroid disease, liver damage, and immune suppression.
Per- and polyfluoroalkyl substances (PFAS), the chemicals that give non-stick cookware its slippery surface, have come under intense scientific scrutiny. Often called "forever chemicals," PFAS do not break down in the environment or in the human body.
A comprehensive review published in the journal *Lancet Diabetes & Endocrinology* analyzed over 200 studies on PFAS exposure. Key findings include:
- Thyroid disruption: PFAS exposure is associated with hypothyroidism and altered thyroid hormone levels, even at low concentrations.
- Liver damage: Elevated liver enzymes and non-alcoholic fatty liver disease have been linked to PFAS accumulation.
- Immune suppression: Children with higher PFAS levels showed reduced antibody response to vaccines.
- Cancer risk: PFAS are associated with kidney and testicular cancers.
The primary exposure route from cookware is through overheating. When Teflon-coated pans are heated above 260°C (500°F), they begin to release PFAS fumes. At 360°C (680°F), the coating starts to decompose rapidly.
- Cast iron cookware (naturally non-stick when seasoned)
- Stainless steel
- Ceramic-coated pans (ensure they are PFAS-free, check the label)
- Carbon steel
What you can do
- ✓Check whether your non-stick cookware is Teflon or similar PFAS-coated brands, and replace them with cast iron, stainless steel, or ceramic-coated alternatives over the next few months.
- ✓Avoid heating non-stick pans above 260°C (500°F) — use medium heat rather than high heat, and never let them preheat empty or sit on the stove unattended, since overheating is the primary way PFAS fumes are released into your home.
- ✓If you continue using non-stick cookware while transitioning away, discard any pans with visible scratches, peeling, or wear on the coating, as damaged surfaces release more PFAS chemicals.
- ✓Ask your doctor whether thyroid function testing (TSH and free T4 levels) would be appropriate for you, particularly if you've used non-stick cookware regularly for years, since PFAS accumulate in the body and are linked to hypothyroidism and altered thyroid hormone levels.
Always consult a healthcare professional for personal medical advice.
Read the full report at the original source
The Lancet Diabetes & EndocrinologyWas this finding useful?
Safer alternative
Explore ceramic and cast-iron cookware alternatives on Amazon
Shop on AmazonAffiliate link — we may earn a small commission at no extra cost to you.